Patent Terms Glossary

Precautionary Designation

Definition:
Designation of a Contracting State in an international application filed under the Patent Cooperation Treaty which must be confirmed prior to 15 months from the priority date.

Joint Inventor

Definition:
An inventor who is named with at least one other inventor in a patent application, wherein each inventor contributes to the conception of the invention set forth in at least one claim in a patent application.

Interference

Definition:
A proceeding, conducted before the Board of Patent Appeals and Interferences (Board), to determine priority of invention between a pending application.

Parent Application

Definition:
The term "parent" is applied to an earlier application of the inventor disclosing a given invention.

Common Inventor

Definition:
An inventor whose name is listed on multiple patent applications or granted patents, making the inventions at least partially the work of the same person.

PCT

Definition:
Patent Cooperation Treaty - provides a mechanism by which an applicant can file a single application that, when certain requirements have been fulfilled, is equivalent to a regular national filing in each designated Contracting State.

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