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USPTO Terms of Art — METH to MZ

Glossary of USPTO Terms of Art

| A | B | C-CL | CM-CZ | D-DIM | DIM-DZ | E | F | G | H | I | J-K | L | M-MET | MET-MZ | N | O | P-PHA | PHE-PON | POR-PZ | Q | R | S-SEPA | SEPO-SMT | SN-STEM | STEP-SZ | T-TOG | TON-TZ | U | V | W | X-Z |

METHINE GROUP (CLASS 008)
Methine group refers to -CH=.

METHYLOL OR METHYLOL DERIVATIVE (CLASS 520)
Methylol or methylol derivative is limited to (a) A compound containing a (b) A compound containing a T-(-O-A)n (c) A compound containing a Y and Y" are H or hydrocarbon groups; Z is H or a carbon atom. T - is an atom other than C or H. A - is a hydrogen or a carbon atom and which carbon atom is bonded to only H, carbon, or single bonded oxygen atoms. X - is H, part of an ether group, or an inorganic salt. n - is two or more, B is one or more.

MF3R (CLASS 438)
modified fully-framed fully-recessed isolation

MGSi (CLASS 438)
metallurgical-grade silicon

MICRO-ORGANISM (CLASS 210)
Living plants or animals of a size normally visible only through a microscope and includes bacteria, yeast, fungi, and virus. For purposes of this class, algae are not considered micro-organisms. The scope of this term is coextensive with the organisms of Class 435, Molecular Biology and Microbiology.

MICRO-ORGANISMS (CLASS 506)
Bacteria; actinomycetales; single-celled fungi (e.g., yeast, etc.); virus, human, animal, or plant cells; tissues; protozoa; or unicellular algae.

MICROFILTER (CLASS 210)
See FILTER.

MICRON (CLASS 210)
A linear measurement equal to one millionth of a meter, one thousandth of a mm, 39 millionths of an inch.

MICROORGANISM (CLASS 435)
For purposes of this class, bacteria, actinomycetales, cyanobacteria (unicellular algae), fungi, protozoa, animal cells or plant cells or virus.

MICROPROCESSOR (CLASS 388)
A circuit which can be programmed with stored instructions to perform a variety of functions, which functions may include, for example, one or more modes of motor control.

MICROWAVE (CLASS 725)
Pertaining to the portion of the radio frequency spectrum above 1 GHz.

MIM (CLASS 438)
metal-insulator-metal

MIM DIODE (CLASS 257)
A junction diode with a thin insulating layer of material sandwiched between two metallic surface layers which operates as a tunneling (direct or Fowler-Nordheim type) diode.

MIM DIODE (CLASS 438)
A junction diode with a thin insulating layer of material sandwiched between two metallic surface layers which operates as a tunneling (direct or Fowler-Nordheim type) diode.

MINERAL OIL (CLASS 208)
Included in this term are natural petroleum, asphalt, tars, pitches and waxes which are primarily mixtures of hydrocarbons. Included also are Fischer-Tropsch crudes, that is, the liquid hydrocarbonaceous mixture resulting from the hydrogenation of a carbon oxide, wood tars and wood tar oils which are similar to coal tar in that they include an unidentified mixture, including hydrocarbons. Solid carbonaceous materials such as coal, lignite, peat, etc., (as distinguished from solid asphalts or asphalt bearing shales or sands) are not included.

MINERAL PLASTIC (CLASS 425)
A naturally occurring mineral which can be formed into a stone-like product by grinding, wetting, shaping and burning.

MINORITY CARRIER (CLASS 257)
The less predominant charge carrier in a semiconductor. In a p-type semiconductor, minority carriers are electrons, whereas in n-type semiconductor material, minority carriers are holes.

MINORITY CARRIER (CLASS 438)
The less predominant charge carrier in a semiconductor. In a p-type semiconductor, minority carriers are electrons, whereas in n-type semiconductor material, minority carriers are holes.

MINORITY CARRIERS (CLASS 330)
See the definition of N- or P-type conductivity below.

MINORITY CURRENT (CLASS 257)
The current caused by flowing minority carriers.

MIRROR FIELD (CLASS 376)
For confinement of plasma, a system has been devised whereby a longitudinal magnetic field is applied to the plasma, but instead of being uniform, the field strength is increased at spaced points. The region of enhanced magnetic field is referred to as a mirror field or magnetic mirror. Substantially all of the charged particles moving from the region of lower to that of the higher field strength, will be reflected back into the former region. This field thus acts as a sort of potential well which inhibits escape of many of the charged particles (and consequent loss of energy).

MIS (CLASS 257)
Acronym for metal-insulator-semiconductor. Typically active solid-state devices with MIS technology have a silicon dioxide layer formed on a single crystal silicon substrate. A polysilicon conductor layer is formed on the oxide.

MIS (CLASS 438)
Acronym for metal-insulator-semiconductor. Typically active solid-state devices with MIS technology have a silicon dioxide layer formed on a single crystal silicon substrate. A polysilicon conductor layer is formed on the oxide.

MISFET (CLASS 438)
metal insulator semiconductor IGFET

MISSILE (CLASS 102)
Any object thrown, dropped, projected, or propelled for the purpose of making it damage a target.

MIXING CHAMBER (CLASS 366)
A space bounded on at least three sides by well structure within which agitation takes place. The chamber may be in the form of a trough, a conduit, or a container of any shape. A supply reservoir or a conveyor for feeding material to a mixing chamber and which includes means for agitating the material prior to its entry into the mixing chamber will not be considered a mixing chamber.

MLC (CLASS 438)
multilayer ceramic

MLEC (CLASS 438)
magnetic LEC

MLO (CLASS 438)
multilayer oxide

MLR (CLASS 438)
multilayer resist

MMA (CLASS 438)
methyl methacrylate

MMIC (CLASS 438)
monolithic microwave integrated circuit

MNOS (CLASS 438)
metal nitride/oxide IGFET

MOBILITY (CLASS 257)
The facility with which carriers move through a semiconductor when subjected to an applied electric field. Electrons and holes typically have different mobilities in the same semiconductor.

MOBILITY (CLASS 438)
The facility with which carriers move through a semiconductor when subjected to an applied electric field. Electrons and holes typically have different mobilities in the same semiconductor.

MOCVD (CLASS 117)
Metal-Organic CVD*. CVD in which a precursor* contains an organo-metallic compound. Also sometimes OMCVD.

MOCVD (CLASS 438)
metal organic chemical vapor deposition

MODE (CLASS 372)
One of several states of electromagnetic wave oscillation that may be sustained in a given resonant system. Each type of vibration is designated as a particular mode, and has its own particular frequency and electric and magnetic field configurations.

MODEM (CLASS 725)
A contraction of MOdulator-DEModulator, an equipment that connects data terminal equipment to a communication line. In broadband networks, a modulator-demodulator device. The modulator encodes digital information onto an analog carrier signal by varying the amplitude, frequency, or phase of that carrier. The demodulator extracts digital information from a similarly modified carrier. A modem transforms digital signals into a form suitable for transmission over an analog medium.

MODERATED NEUTRONS (CLASS 376)
See Thermal Neutrons.

MODERATOR (CLASS 376)
For the purpose of this class, is a substance used within a fission reactor core in special relationship with the fuel to reduce the energy, and hence speed, of fast neutrons (so far as possible) emanating from the fuel by means of collisions without capturing them. Graphite and heavy water are examples.

MODFET (CLASS 257)
Acronym for a modulation doped field effect transistor. A high speed semiconductor FET in which dopant atom containing semiconductor layers alternate with non-doped semiconductor layers, so that the carriers (electrons or holes) resulting from the dopant atoms can travel in the undoped material, so that there is little scattering of carriers from dopant atoms. Typically, the dopant atoms are in semiconductor material having a lower carrier affinity than the undoped layers, to facilitate carrier spill over into the undoped layers. Such a structure may typically constitute a superlattice. See also HIGH ELECTRON MOBILITY TRANSISTOR (HEMT).

MODFET (CLASS 438)
Acronym for a modulation doped field effect transistor. A high speed semiconductor FET in which dopant atoms containing semiconductor layers alternate with nondoped semiconductor layers, so that the carriers (electrons or holes) resulting from the dopant atoms can travel in the undoped material, so that there is little scattering of carriers from dopant atoms. Typically, the dopant atoms are in semiconductor material having a lower carrier affinity than the undoped layers to facilitate carrier spill over into the undoped layers. Such a structure may typically constitute a superlattice. See also High Electron Mobility Transistor.

MODFET (CLASS 438)
modulation doped MESFET (i.e., HEMT)

MODIFIER (CLASS 362)
A recited element or combination of elements whose proximate function in the claimed combination is, according to the claim or the claimed disclosure, to alter the distribution or composition of light emitted from a light source by reflecting, refracting, or partially or completely absorbing the light.

(1) Note. Certain terms such as "lens," "shield," "screen," etc., are used in the art in some instances to denote modifiers and in other instances to denote structure whose proximate function is other than to modify light. For example, the term "lens" is used in some instances to denote means whose proximate function is to refract light and in other instances to denote merely a transparent window in a light housing whose proximate function is to protect the light source. Whether or not a means recited in a claim in such ambiguous terms is to be considered a modifier for placement within this class must be determined by the proximate function (according to the claim or the claimed disclosure) of the means in the claimed combination.

(2) Note. Certain terms such as "shade," "bowl," etc., are used in the art in some instances to denote recited modifiers which, according to the claim or claimed disclosure, function to modify light in two or more ways provided for separately in this class. A recited "bowl," for example, may, according to the claim or claimed disclosure, function in the claimed combination to diffuse light by internal scattering within the material of which the bowl is made (viz., translucent bowls) and reflect light from one of its surfaces. Such a modifier is classifiable in the first-occurring subclass providing for modifiers which perform at least one of its modifying functions.

MODULAR (CLASS 052)
A construction utilizing modules.

MODULAR NEURAL NETWORK (CLASS 706)
A system of plural neural networks, often of heterogeneous types; e.g., self-organizing network connected to a feedforward network.

MODULATED CARRIER WAVE (CLASS 455)
A wave resulting when the necessary characteristics of an intelligence or information signal are impressed on a carrier wave.

MODULATED SIGNAL (CLASS 329)
A repetitious wave which has had a characteristic thereof varied by a modulating signal.

MODULATING SIGNAL (CLASS 329)
An information carrying signal whose informational content is to be impressed on a carrier or pulse wave.

MODULATING SIGNAL (CLASS 332)
Is an information carrying signal whose informational content is to be impressed on a carrier or pulse wave.

MODULATION DOPING (CLASS 257)
Spatial modulation of dopant atoms in a semiconductor crystal.

MODULATOR (CLASS 329)
A device which varies a characteristic of a repetitious electrical or electromagnetic wave of less than infrared frequency in accordance with a characteristic of an arbitrarily varying modulating signal.

MODULATOR (CLASS 332)
Is a device which varies a characteristic of a repetitious electrical or electromagnetic wave of less than infrared frequency in accordance with a characteristic of an arbitrarily varying modulating signal.

MODULE (CLASS 052)
A component of building construction, usually designated by terms such as; brick, block, slab, panel, tile, sheet, precast monolith, etc., which when assembled in repetitious juxtaposition with other such preformed shapes (with or without interposed connecting means or material) define a surface of a construction, e.g., of a wall, ceiling or floor.

MODULE (CLASS 249)
A component of building construction, usually designated by terms as, brick, block, tile, sheet, etc., which with other such preformed shapes assembled in repetitious juxtaposition define a surface of construction, e.g., of a wall, ceiling or floor.

MODULE (CLASS 404)
Monolithic component such as brick, block, slab, panel, tile, sheet, precast or preformed member, etc. which may be utilized (1) in repetitious juxtaposition with similar components, (2) with nonmodular components or (3) alone to constitute road structure.

MOIETY (CLASS 977)
Component part of a complex molecule.

MOIL (CLASS 065)
Surplus or waste glass which must be removed from the apparatus or a product after a glass working operation.

MOLD (CLASS 249)
See the Class Definition, section A and B.

MOLD ELEMENT (CLASS 249)
See the Class Definition, section F.

MOLD WITH CORE (CLASS 249)
See the Class Definition, section D.

MOLDING APPARATUS (CLASS 249)
A generic term which denotes anyone of the structures set forth in the Class Definition, sections A - F.

MOLECULAR ASSEMBLER or NANOASSEMBLER or ASSEMBLER (CLASS 977)
Theoretical conception of a molecular machine capable of building other molecular structures.

MOLECULAR DISTILLATION (CLASS 203)
A high vacuum separatory distillation process for distilling high boiling, heat sensitive substances in which the distance from the liquid surface to the condensing surface is less than the mean free path.

MOLECULAR ELECTRONICS or MOLETRONICS (CLASS 977)
Electronic devices based on components consisting of individual molecules.

MOLECULAR NANOTECHNOLOGY (CLASS 977)
Broadly refers to nanotechnology involving molecules. (Drexlerian) Sometimes used to distinguish nanotechnology employing theoretical molecular assemblers from other forms of nanotechnology.

MOLECULAR OR PARTICLE RESONANT OSCILLATOR (CLASS 331)
An oscillator wherein the frequency determining element consists of a material medium comprising particles, molecules or atoms, the application of electrical energy by the driving means to the medium setting the particles, molecules or atoms into a state of vibration or oscillation, the vibration or oscillation being that of the particle, molecule or atom itself and not the vibration or oscillation caused by the translational motion of the particle, molecule or atom as a whole.

MOLECULAR RESONATOR (CLASS 331)
A resonator comprising a material medium and wherein the vibration or oscillation of the molecules of the medium determines the resonant frequency of the resonator. The vibration or oscillation is of the molecule itself and not that due to the translational motion of the molecule as a whole. See, also, above, the definition of a molecular or particle resonant oscillator.

MOLECULAR SIEVE (CLASS 210)
A sorbent with an extremely large volume of pores, each of about molecular size, capable of selectively sorbing gases and other material in molecular form; generally of Zeolite.

MOMBE (CLASS 117)
Metal-Organic Molecular Beam Epitaxy*. MBE in which a precursor* contains an organo-metallic compound.

MOMOM (CLASS 438)
metal-oxide-metal (tunnelling device)

MONITORING (CLASS 725)
In communications, the process of observing or tracking system activities.

MONITORING (CLASS 726)
Subject matter includes means of watching, tracking, inspecting, analyzing of system or user activity. This includes the auditing of system vulnerabilities and system configuration, assessing the integrity of files within a system, identifying and recognizing patterns that dictate known attacks, analysis of abnormal activity patterns, recognizing user activity in regards to policy violations and operating system audit trail management.

MONOCHROMATOR (CLASS 356)
An instrument for producing a narrow band of the spectrum by dispersing a radiation beam into its components or colors, and isolating the narrow band desired as by passing the components or colors through a narrow slit.

MONOCHROME IMAGE (CLASS 430)
An image which absorbs only part of the light in the visible electromagnetic spectrum.

MONOCYCLIC RING (CLASS 532)
This term denotes a ring which is not part of a polycyclo ring system.

MONOLITH (CLASS 052)
A structure erected in situ by casting a water-settable composition, e.g., plaster or concrete.

MONOLITHIC DEVICE (E.G., IC, ETC.) (CLASS 438)
A device in which all components are fabricated on a single chip of silicon. Interconnections among components are provided by means of metallization patterns on the surface of the chip structure, and the individual parts are not separable from the complete circuit. External connecting wires are taken out to terminal pins or leads.

MONOLITHIC DEVICE (e.g., IC) (CLASS 257)
A device in which all components are fabricated on a single chip of silicon. Interconnections among components are provided by means of metallization patterns on the surface of the chip structure, and the individual parts are not separable from the complete circuit. External connecting wires are taken out to terminal pins or leads.

MORDANT DYE (CLASS 008)
Mordant dyes are dyes which require a mordant in their application and which upon combination with the mordant deposit insoluble color on the substrate, e.g., dyes with metal chelating groups.

MORDANTS (CLASS 008)
Are substances of organic or inorganic origin which combine with the coloring matter and are used to fix the same in the production of the color. For the purpose of this class, such materials as oils and sulfonated oils, soaps, fats and higher acids, are not generally considered as mordants, but as coming within the scope of "assistants" in dyeing.

MOS FET (CLASS 117)
Metal Oxide Semiconductor Field Effect Transistor.

MOSFET (CLASS 438)
metal oxide semiconductor IGFET

MOTION PICTURE (CLASS 352)
A pictorial representation of objects which change position with time comprising a plurality of pictures in which objects are incrementally displaced in successive pictures corresponding to a displacement in time, the plurality of pictures being displayed sequentially at such a rate that they create, due to the persistence of vision, an illusion of motion to the viewer.

MOTION PICTURE APPARATUS (CLASS 352)
Instruments and machines for use in recording or reproducing motion pictures, and includes cameras, projectors, and carriers.

MOTION PICTURE SEQUENCE (CLASS 352)
A plurality of individual pictures presented at such a rate as to produce a motion picture.

MOTIVE FLUID (CLASS 091)
The fluid (expansible or inexpansible) which is introduced into or withdrawn from a working chamber of the motor to cause the working member to move. The term "motive fluid" applies to the fluid from the point of origin to the point of disposal. Fluid which is withdrawn from the motive fluid supply to perform some other motor function, such as motor valve operation, is still considered to be motive fluid even though said fluid never enters the working chamber of the motor. Atmospheric air which acts upon the working member of a vacuum motor is not considered to be motive fluid unless the atmospheric air is controlled in some manner, as by valving. In a vacuum motor the fluid which is evacuated from the working chamber is considered to be exhaust motive fluid and the atmospheric air, if controlled, is considered to be inlet motive fluid.

MOTIVE FLUID (CLASS 173)
A fluid used to drive a motor, and including fluid taken from a stream supplying a motor, or from a stream exhausting from a motor. Fluid fuel for or fluid exhaust from a combustion motor is included under this definition.

MOTIVE FLUID (CLASS 175)
Any fluid which is derived from a pressurized stream which operates a drive motor for the boring means. Motive fluid when exhausted into the bore is also considered to be drilling fluid.

MOTIVE FORCE (CLASS 440)
Any force used to impart motion.

MOTOR (CLASS 415)
Generally, an apparatus in which one form of energy is changed so that mechanical power is obtained. Specifically for this class, an apparatus for obtaining mechanical power from the kinetic or potential energy in a fluid material contacting a rotary member of the apparatus, as further defined and limited herein.

MOTOR (CLASS 440)
A device which receives and modifies electrical energy or energy from some natural source in order to produce force or motion.

MOTOR BRAKING CONTROL (CLASS 318)
Includes any device or means for applying a torque or force to the power output element of the electric motor in a direction which is in opposition to the motor torque or force (resulting from electrical energization of, or the kinetic or potential energy stored in, the motor) and tending to retard, stop or prevent movement of the motor--excepting, of course, mere useful load devices actuated by the motor, or such forces that are normally inherent in the motor structure, per se, such as bearing friction, windage, eddy current reaction, etc. However, means providing for substantially increased or accentuated eddy currents in the motor structure to increase the retarding or braking effect, are classified herein. Examples of braking means included herein, include, auxiliary eddy-current disks, electric generators, fans, pumps, propellers and other motor shaft loading devices when such devices are limited in the claims to the function of braking the motor. When such shaft loading devices are not limited as claimed to the function of braking, classification is not herein, but in some other appropriate place. For the distinction between braking control and deceleration control see the definition of Acceleration Control in the Glossary. Braking of the motor to control the running speed of the motor (e.g., to maintain the speed constant) is classified in the running speed control subclasses. For the distinction between motor braking and motor reversing, see reversing control below.

MOTOR CONTROL (CLASS 388)
A system or device (usually an electrical circuit) which causes one or more of the operating parameters of a motor to be held constant or to be changed in a predetermined way. Note: For a description of each of the several modes of motor control, see the class definition above.

MOTOR DECELERATION CONTROL (CLASS 318)
See the definition of motor acceleration control in the definition of motor deceleration control.

MOTOR DRIVEN OR ACTUATED (CLASS 049)
A powered means such as a motor or engine utilized as the moving force or input of the operator. A mere spring is not a powered means, but a motor having a spring as the source of power is included within the meaning of the term defined.

MOTOR LOAD CONTROL (CLASS 318)
Controlling the mechanical load actuated by the motor or controlling the motor armature or primary current during the starting and/or stopping period of the motor. Where the current is controlled to control the acceleration or deceleration of the motor, the system is classified as motor acceleration or deceleration control, see section IB4a of the class definition. Where the current is controlled to effect motor braking the system is classified as braking control see the definition acceleration control.

MOTOR OPERATION CONTROL (CLASS 318)
See the Glossary terms Acceleration Control; Automatic Starting and Stopping; Motor Braking Control, Motor Deceleration Control; Motor Load Control, Reversing Control, Running Speed Control; Starting And/Or Stopping; Diverse Motor Operations.

MOUNTING (CLASS 351)
A frame structure completely or partially surrounding a lens or utilizing a bridge and nose pads for supporting vision-aids in front of the eyes of a user. This term is broader than "frame", in that it includes the pince-nez type.

MOVABLE CLOSURE (CLASS 049)
A closure mounted to move in a regular, repetitive, predetermined path with respect to a passage so as to alternately open or close the passage.

MQW (CLASS 438)
multiquantum well

MSM (CLASS 257)
Acronym for metal-semiconductor-metal semiconductors. Active solid-state semiconductor devices having a semiconductor layer sandwiched between two layers of metal.

MSM (CLASS 438)
Acronym for metal-semiconductor-metal semiconductor device. Active solid-state semiconductor devices having a semiconductor layer sandwiched between two layers of metal and forming back-to-back Schottky diodes.

MTF (CLASS 438)
mean time to failure

MTL (CLASS 438)
merged transistor logic (i.e., I2L)

MUFFLE FURNACE (CLASS 075)
A furnace in which the material to be heated is placed in an enclosed section (the muffle), which protects the material from the combustion products of the furnace. The material is heated by heat conducted through the walls of the muffle.

MULTIDIRECTIONAL MOVEMENT (CLASS 049)
Motion along two or more distinct lines of travel or about two or more axes of rotation or a combination thereof, in a single operation.

MULTIFOCAL LENSES (CLASS 351)
Fused or onepiece lenses having areas of different refracting powers, usually one area part being intended for distant vision and the other for close work.

MULTILAYER METALLIZATION (CLASS 257)
Two or more layers of interconnecting metallization patterns in a monolithic integrated circuit separated by insulator material except in interconnection areas.

MULTIPLEXING (CLASS 370)
The simultaneous transmission of two or more information signals in either or both directions over a common (same) transmission medium in such a manner that the information signals may be discretely recovered.

MULTITASKING (CLASS 709)
A mode of operation in which a computer works on more than one task at a time.

MULTITASKING (CLASS 718)
A mode of operation in which a computer works on more than one task at a time.

MULTITASKING (CLASS 719)
A mode of operation in which a computer works on more than one task at a time.

MUSCULAR IMBALANCE (CLASS 351)
Abnormal eye muscle functioning, tending the eyes to cross or diverge.

MWNT (MULTI-WALLED NANOTUBE) (CLASS 977)
Formed of multiple layers of graphene wrapped in cylindrical form.

| A | B | C-CL | CM-CZ | D-DIM | DIM-DZ | E | F | G | H | I | J-K | L | M-MET | MET-MZ | N | O | P-PHA | PHE-PON | POR-PZ | Q | R | S-SEPA | SEPO-SMT | SN-STEM | STEP-SZ | T-TOG | TON-TZ | U | V | W | X-Z |

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