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USPTO Terms of Art — P to PHA

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 |

p (CLASS 438)
high resistivity intrinsic semiconductor

P-CHANNEL (CLASS 257)
A conduction path, made of p-type semiconductor material, located between the source and drain of a field effect device.

P-CHANNEL (CLASS 438)
A conduction path, made of p-type semiconductor material, located between source and drain of a field effect device.

P-MOSFET (CLASS 257)
A metal oxide semiconductor field effect transistor having p-type source and drain regions and a p-type conduction channel which may be formed by a p type doped region (depletion mode) or induced by a voltage on the gate (enhancement mode).

P-TYPE (CLASS 438)
An extrinsic semiconductor in which the hole density exceeds the conduction electron density.

P-TYPE CONDUCTIVITY (CLASS 257)
Electrical conductivity associated with positive charge carriers (holes) in a semiconductor material.

P-TYPE CONDUCTIVITY (CLASS 330)
The characteristic of a semiconductor material, usually imparted by "acceptor" type impurities therein, of an excess of free positive carriers (holes) over free negative carriers (electrons), such positive carriers or holes being referred to as majority carriers for current flow in such material and the electrons as minority carriers for such current flow.

P-TYPE SEMICONDUCTOR (CLASS 257)
An extrinsic semiconductor in which the hole density exceeds the conduction electron density.

P/N JUNCTION (CLASS 117)
An interface formed by two semiconductor materials in which one contains a charge carrier which is an electron donor (n-type semiconductor) and the other contains a charge carrier which is an electron acceptor (p-type semiconductor).

PAC (CLASS 438)
photoactive compound

PACKAGE (CLASS 053)
A unit consisting of an assembled cover material and contents, where the contents is, or is to be, encased or encircled by the cover material. The cover need not be shaped around the contents, e.g., the unit resulting from the final positioning of a contents upon a cover blank or web, which is then handled as a unit through further packaging operations including an encasement or encirclement, is also termed a package.

PACKAGE (CLASS 257)
A container, case, or enclosure for protecting a solid-state electronic device from the environment.

PACKAGE (CLASS 426)
Mercantile combination of an edible material fully encased, encompassed, or completely surrounded by a solid material.

PACKAGE (CLASS 438)
A container, case, or enclosure utilized in the context of semiconductor art for protecting a solid-state electronic device from the environment and which is considered a part of a manufacture product (i.e., as opposed to a package utilized for passage of a product through the channels of trade in a safe, convenient, and attractive condition).

PAD (CLASS 257)
(1) The portion of a conductive pattern on a solid-state electronic device for making external connection thereto; (2) the portion of a conductive pattern on a chip or a printed circuit board designed for mounting or attaching a substrate or solid-state active electronic device.

PAD (CLASS 438)
A. The portion of a conductive pattern on a solid-state electronic device for making external connection thereto. B. The portion of a conductive pattern on a chip or a printed circuit board designed for mounting or attaching a substrate or solid-state active electronic device. See also bonding pad, die bond, etc.

PADDLE (CLASS 440)
A device used to propel a vessel in the water consisting of a broad fairly flat blade that is dipped vertically or near vertically into the water.

PAGE (CLASS 400)
A unit of printed text corresponding to that which would appear on one leaf or sheet of a book, newspaper, or document. It usually refers to a sheet of text, but in the instance where text is imprinted on a web (i.e., of indeterminate-length material), it refers to that length of web which will subsequently be cut to form a sheet of determinate length.

PAGE(*) (CLASS 412)
A side of a sheet(*).

PALLET (CLASS 425)
A supporting surface used as a mold bottom or as a green material handling device.

PANEL (CLASS 049)
A sheet-like member which is a section of a closure structure.

PANEL (CLASS 112)
A portion of material of finite perimeter having length and width greater than thickness and (a) having a modification or embellishment of or on the entire periphery thereof or at least two nonadjacent corners, (b) being completely enclosed in an envelope which substantially conforms thereto, or (c) having a boundary shape which is other than rectangle.

PANEL (CLASS 249)
A separate or distinct molding surface or a plurality of separate and distinct molding surfaces connected to form an integral molding surface.

PANEL (SEE MODULE) (CLASS 052)
The term panel is used to denote a thin rigid sheetlike structure which may not be disclosed as used repetitiously, e.g., table top or pane.

PAP (CLASS 438)
peel apart

PAPER (CLASS 428)
Unless otherwise specified, is a sheet or web of waterlaid felted cellulosic fibers. May also be made of asbestos, mineral or synthetic fibers or blends of fibers, but must be so disclosed solely, or must be so claimed for placement in a subclass other than cellulosic or paper. (Nonstructural or Composition)

PAPER-FINGER (CLASS 400)
A member that is in substantial contact with a platen* or with a record-medium* that is supported or backed by the platen, which member thereby ensures contact of a record-medium with the platen. It is usually an elongated element, and in those typewriters wherein the platen is cylindrical the paper-finger is arcuate and conforms to the periphery of the platen for a substantial length of the paper-finger in order to hold the record-medium to the platen.

PARAMAGNETISM (CLASS 428)
Paramagnetic materials have magnetic moments not completely canceled because of electronic configuration and exhibit a resultant moment. Paramagnetic susceptibility is strongly temperature dependent. Examples of paramagnetic materials are CoCr alloys at specific Cr concentrations and materials exhibiting specific size ranges of either the magnetic grains or particle dimensions.

PARASITIC CURRENT (CLASS 257)
Unintended current which flows between devices in an integrated circuit, or which flows between device regions and isolation regions.

PARASITIC DEVICES/CHANNELS (CLASS 257)
Junctions forming unintended active solid-state devices which interconnect intended active solid-state devices, which unintended devices are not designed to carry current flow.

PARASITIC DEVICES/CHANNELS (CLASS 438)
A. Junctions forming unintended interconnection of intended active solid-state devices. B. Devices which were not designed to carry current flow and which result from unintended interconnection of intended active solid-state devices.

PARASITIC ELEMENT (CLASS 343)
A conductive (usually metallic) structure (e.g., rod) which reradiates into free space impinging electromagnetic radiation (waves) coming from or going to the active antenna, the velocity of the reradiated wave having a component which is in the same direction (director) as, or in the opposite direction (reflector) to, that of the velocity of the impinging wave.

PARASITIC REACTANCE, IMPEDANCE, CAPACITANCE, OR INDUCTANCE (CLASS 330)
Impedance characteristics of capacitive or inductive nature which are exhibited by conductive elements or conductive parts of a circuit at only high frequencies in a circuit designed for operation over a wide band and are inherent in the construction of such element or part. The presence of such reactances is undesirable and generally detrimental to the proper operation of the circuit. When a parasitic reactance is used as though it were a predetermined lumped reactance as in the case of the distributed capacitance of a coil being used to resonate therewith at a particular frequency; the distributed capacitance or other parasitic reactance is treated, for classification purposes, as though it were a predetermined lumped reactance in the circuit. Inter-electrode capacitances similarly involved in amplifiers as part of a tuned circuit are similarly treated.

PARASITIC THYRISTOR ACTION (CLASS 257)
Unwanted active solid-state device formation in which four adjacent complementary doped regions not designed to act as an active solid-state device, lack sufficient isolation therebetween and act as a thyristor. Parasitic thyristor action is typically a problem encountered in CMOS integrated circuits.

PARASITIC TRANSISTOR ACTION (CLASS 257)
Unwanted transistor formation in an integrated circuit structure.

PARISON (CLASS 065)
A partially shaped article of manufacture requiring further significant shaping to arrive at the form of a completed useful article.

PARISON (CLASS 425)
An intermediate hollow preform from which a bottle or the like is made.

PARSING (CLASS 707)
An operation that breaks up a data structure or query to smaller parts that still have value to facilitate storage or processing.

PART(S) (CLASS 277)
These are component(s) (e.g., housing, casing, rod, shaft, etc.) of the joint or juncture.

PARTICLE (CLASS 428)
A very small quantity of matter, so small as to be considered without magnitude although possessing inertia and the force of attraction. (Structural)

PARTICULAR ATTACHMENT METHOD (CLASS 506)
Specific method of attachment focusing on the way molecules are bound to the solid or liquid support (e.g., by means of electrostatic interactions, formation of covalent bonds by cycloaddition reactions, or by irradiation, etc.).

PARTICULATE MATERIAL (CLASS 425)
Minute separate particles which are handled as bulk and not as individual pieces.

PARTING LAYER (CLASS 065)
See Subclass References to the Current Class, above, for a subclass reference to the term "parting layer."

PARTING MATERIAL (CLASS 425)
A material that prevents adhesion or sticking of work to the apparatus.

PARTITION (CLASS 249)
Structure set forth under the Class Definition, section F, which divides a mold cavity into plural cavities.

(1) Note. Structure set forth in this definition which forms a hole or recess in the product is considered a core.

PARTITION MEMBER (CLASS 418)
A member either fixed or movable on either the cylinder working member or other reaction member having a surface portion forming part of the working chamber to either (1) separate the working chamber into a plurality of working fluid compartments or (2) separate the inlet from the outlet of the rotary expansible chamber device.

PASSAGEWAY (CLASS 072)
A conduit or path (especially for guiding and restraining the plastic flow of metal), having at least one shape-imposing portion of closed perimeter definable in a plane normal to the axis of the conduit.

(1) Note. A passageway is usually open at each end; the term may, however be applied to a blind hole which, by disclosure, does not become completely and forcibly filled with work during an operation of the class type.

(2) Note. A passageway is capable of imposing more than one shape on work; it may be regarded as a sequence of orifices, e.g., for drawing or extruding a twisted product of noncircular cross section.

PASSIVE DEVICE (CLASS 257)
A solid-state electronic device or component in which charge carriers do not change their energy levels and that does not provide rectification, amplification, or switching, but which does react to voltage and current. Examples are pure resistors, capacitors, and inductors.

PASSIVE DEVICE (CLASS 438)
A solid-state electronic device or component in which charge carriers do not change their energy levels and that does not provide rectification, amplification, or switching, but which does react to voltage and current. Examples are pure resistors, capacitors, and inductors.

PASSIVE INDUCTOR (CLASS 336)
An inductor device which contains no source or sink of energy (i.e., an active element). A 'Sink of energy" as used in this definition is an element or network which is designed to absorb energy, by converting electrical energy into another form of energy. Excluded, therefore, are variable or adjustable inductance devices in which the change in inductance is effected, at least in part, by an active element such as, by way of example, continuously rotating machinery (i.e., synchronous or asynchronous phase modifier or phase advancer machines) or reactance tube systems having space discharge devices with electrode biasing potential sources.

PASSIVE NETWORK (CLASS 330)
A network containing no source of energy and in which no energy is dissipated other than that accounted for by the resistance of the components of the network.

PASSIVE NETWORK (CLASS 333)
A network containing no source of energy and in which no energy is dissipated other than that accounted for the resistance of the components of the network.

PASTE MOLD (CLASS 065)
A mold with an inner lining of a paste (generally made from resins and linseed oil, soap, etc.) which is brushed into a hot mold and kept wet so that glass within the mold rides on a steam cushion while being formed.

PATENTING (CLASS 148)
A continuous process consisting of heating the metal to a temperature well above the upper critical temperature, then rapidly cooling through the critical temperature at a comparatively rapid rate to a predetermined elevated temperature, the cooling step being commonly effected in a fused metallic bath.

PATTERN (CLASS 164)
A replica of an object to be cast and around which the mold is constructed.

PATTERN (CLASS 234)
A tangible object, which, when temporarily presented to a suitable machine of the class type, affects the control of tool selection. (The workpiece itself may function as a pattern).

PATTERN PLATE (CLASS 164)
A board to which patterns are to be attached and which extends substantially over the flask opening.

PATTERN-FIELD (CLASS 234)
A complete pattern or any part thereof which may be chosen to supply input data for any purpose.

PATTERN-SENSER (CLASS 234)
One or more elements which are capable of responding to certain indicia or characteristics of a pattern* presented to a machine, which response may be utilized to exert a control function on some portion of the machine.

PATTERN* (CLASS 382)
For the purpose of this class, a pattern* is any form in an image having discernable characteristics that provide a distinctive identity when contrasted with other forms. For example, the character "A" has a distinctive identity when contrasted with all other letters of the alphabet.

PATTERN* RECOGNITION* (CLASS 382)
For the purpose of this class, pattern* recognition* is defined as any procedure for ascertaining differences, as well as similarities, between pattern*s under observation and partitioning the pattern*s into appropriate categories based on these perceived differences and similarities; or any procedure for correctly identifying a discrete pattern*, such as an alphanumeric character, as a member of a predefined pattern* category.

PAVEMENT (CLASS 404)
Hardened, treated or "finished" surface of a roadway-or an upper "layer" thereof-exposed to the wear of traffic. This roadway portion may constitute either (1) the entire roadway with respect to untreated or unworked earth or (2) no more than an upper course of a multilayer structure. In many instances, the "pavement" itself is made up of more than one distinct stratum.

PAWL (CLASS 400)
A moveable member having a protruding portion that engages a notch between two adjacent teeth of a ratchet* to cause or enable intermittent movement of the ratchet. The movement of a pawl is usually two-way, that is, oscillation or reciprocation, and the protruding portion of the pawl engages a notch between two adjacent teeth of the ratchet and moves relative to the ratchet over or around one of the teeth to engage a notch between the next two adjacent teeth. In one form of pawl and ratchet mechanism, the pawl is driven while engaged in a notch between the teeth to thereby drive the ratchet, and then is retracted to reengage a notch between the next teeth. In another form of pawl and ratchet mechanism, the ratchet is urged to be moved, but its movement is restrained by the pawl; movement of the pawl momentarily releases the ratchet for movement of the ratchet, and return of the pawl to a notch between the next teeth again restrains the ratchet. In either mechanism a plurality of pawls, or a pawl with a plurality of protruding portions may be used alternately.

PAY-PER-VIEW (PPV) (CLASS 725)
A programming event that is provided upon request, in which the event is broadcast on a particular channel at a particular time. These events are distributed to all subscribers, but enabled on an individual basis through an interactive process.

PAYLOAD (CLASS 102)
A container for holding explosive, research, reconnaissance, or counter measure equipment, animal life, parachute, etc., which is propelled into the air by an explosive means.

PBG (CLASS 438)
photonic band gap

PBL (CLASS 438)
polybuffered LOCOS

PBM (CLASS 438)
planarization blocking mask

PBN (CLASS 438)
pyrolytic boron nitride

PBT (CLASS 438)
permeable base transistor

PCB (CLASS 438)
printed circuit board

PCE (CLASS 438)
photoconductive element

PEB (CLASS 438)
postexposure baking

PECVD (CLASS 117)
Plasma Enhanced CVD*.

PECVD (CLASS 438)
plasma enhanced chemical vapor deposition

PELTIER EFFECT (CLASS 117)
A thermoelectric effect wherein electric current between/through a solid/solid or a solid/liquid junction creates heating in one side and cooling in the other.

PENETRATE (CLASS 227)
Act of inserting or imbedding (e.g., by piercing, etc.) all or a portion of an elongated member in work material, by bodily movement of the member or the proximate portion of the work material (as distinguished from relative deflection or deformation of plural portions of an exteriorly applied fastener, as in pinching, binding, clipping, hog-ringing, etc.). The term may also refer to increasing or advancing an already established penetrating relationship, by bodily movement of the member relative to the work.

PEP (CLASS 438)
photo-engraving process

PEPTIDES (CLASS 930)
Compounds containing a sequence of 4 to 100 amino acid units, which are bound through at least one normal peptide link.

PERIODIC TABLE (CLASS 208)
In this class metals and metal compounds may be identified as belonging to a certain "Group" distinguished by Roman numerals. These groups are taken from Henry D. Hubbard'S "Periodic chart of the Atoms" (1956 Ed.).

(1) Note. The metals making up the various groups are as follows:

IA = Li, Na, K, Rb, Cs and Fr (these metals are also identified as "alkali metals").

IB = Cu, Ag and Au

IIA = Be, Mg, Ca, Sr, Ba and Ra (Mg, Ca, Sr and Ba are also identified as "alkaline earth metals")

IIB = Zn, Cd and Hg

III = Al, Ga, In, Tl, Sc, Y, Rare Earth metals and Actinide series metals [Rare Earth Metals: La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu; Actinide Series Metals (atomic numbers 89 and greater) Ac, Th, Pa, U, Np, Pu, Am, Cm, Bk, Cf, E, Fm and Mv]

IV = Ge, Sn, Pb, Ti, Zr and Hf

V = As, Sb, Bi, V, Nb and Ta

VI = Po, Cr, Mo and W

VII = Mn, Tc and Re

VIII = Fe, Co, Ni, Ru, Rh, Pd, Os, Ir and Pt. (Ru, Rh, Pd, Os, Ir and Pf are also known as "Noble Metals")

PERIPHERAL (CLASS 345)
A functional unit that transmits data to or receives data from a computer to which it is coupled.

PERIPHERAL (CLASS 706)
A functional unit that transmits data to or receives data from a computer to which it is coupled

PERIPHERAL (CLASS 709)
A functional unit that transmits data to or receives data from a computer to which it is coupled.

PERIPHERAL (CLASS 711)
A functional unit that transmits data to or receives data from a computer to which it is coupled (e.g., modems, keyboards, monitors, touch tablet, printers, joy stick, disk and tape drives, etc.).

PERIPHERAL (CLASS 712)
A functional unit that transmits data to or receives data from a computer to which it is coupled.

PERIPHERAL (CLASS 713)
A functional unit that transmits data to or receives data from a computer to which it is coupled.

PERIPHERAL (CLASS 714)
A functional unit that transmits data to or receives data from a computer to which it is coupled.

PERIPHERAL (CLASS 718)
A functional unit that transmits data to or receives data from a computer to which it is coupled.

PERIPHERAL (CLASS 719)
A functional unit that transmits data to or receives data from a computer to which it is coupled.

PERIPHERAL (CLASS 902)
A device associated with a terminal*, either as a subcombination adapted to enhance input or output of data (e.g., a printer for output, a voice recognizer for input, etc.), or in combination with the terminal to add a disparate function (e.g., means to identify counterfeit money, a sheet feeder, etc.).

PERISTALTIC CCD (CLASS 257)
See BULK CHANNEL CCD.

PERMANENT COATING (CLASS 204)
A coating which remains as part of a finished article as distinguished from a coating which is formed upon and removed or stripped from a base or substrate.

PERMEABLE (CLASS 210)
Property of allowing passage or migration of other material through a barrier or septum of the material so designated. The migration phenomenon is due primarily to the chemical nature of the materials involved and may include molecular weight or size as a factor.

PERMEATE (CLASS 210)
Material which has passed through a permeable or semipermeable membrane.

PERMISSIBLE ENERGY LEVEL (CLASS 257)
An energy level in a conduction or valence band which a charge carrier (electron or hole) may have.

PERMUTATION (CLASS 070)
Variation or change of a combination to produce a different combination.

PERSONAL COMPUTER (PC) (CLASS 725)
A system, containing a host and a limited number of peripherals designed to be used in the home or in small offices, that enables individuals to perform a variety of computing or word-processing functions or both, and that typically is of a size permitting it and its peripherals to be located on a table surface. Note: Other definitions given in product standards or applicable regulations may take precedence. Alternatively, a single-user microcomputer designed for personally controllable applications.

PERSONAL IDENTIFICATION NUMBER (PIN) (CLASS 725)
A unique code number assigned, as with automatic teller machine cards, to the authorized user.

PFT (CLASS 438)
peeled film technology

PGA (CLASS 438)
(a) pin-grid array or (b) programmable gate array

PGMA (CLASS 438)
poly(glycidyl methacrylate) (an EB resist)

pH (CLASS 210)
The measure of the acidity or basicity (alkalinity) of a liquid. Also determines the sweetness or sourness of a liquid. The original value was the log of the reciprocal of the hydrogen ion concentration.

PHASE CONTROL (CLASS 323)
Includes the maintenance of a predetermined value of or the predetermined variation of the value of the phase angle between the current and voltage of a circuit or of the phase angle of the current or voltage of a circuit with respect to itself or to the current or voltage of another circuit.

PHASE CONVERSION (CLASS 363)
The transformation of electrical energy having one number of phases to electrical energy having another number of phases.

PHASE DISTORTION (CLASS 333)
Results from different frequencies travelling with different velocities such that their relative arrival times differ from their relative starting times.

PHASE DISTORTION CHARACTERISTIC (CLASS 333)
Used to designate the change in displacement of different frequency components of a band of frequencies transmitted by a transmission device or network. For example, certain frequencies of the band will be retarded or advanced a different amount than other frequencies.

PHASE LOCKED LOOP (CLASS 388)
A closed loop circuit in which the output signal is compared to a reference signal and any phase difference between the two signals is used to adjust the output signal to "lock" it to the phase of the reference signal.

PHASE SHIFT (CLASS 330)
Used to designate the change in phase relation between voltage and current of the same wave energy, or between the voltages or the currents of different wave energy of the same frequency.

PHASE SHIFT (CLASS 333)
Used to designate the change in phase relation between voltage and current of the same wave energy, or between the voltages or the currents of different wave energy of the same frequency.

| 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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