Patent Terms Glossary

National Stage Application

Definition:
An application which has entered the national phase of the Patent Cooperation Treaty by the fulfillment of certain requirements in a national Office, which is an authority entrusted with the granting of national or regional patents.

Serial Number

Definition:
A number assigned to a patent application when it is filed. A serial number is usually used together with a two digit series code to distinguish between applications filed at different times.

Assignor

Definition:
The owner of record of a patent application, patent, trademark application or trademark registration who is transferring ownership to another entity (assignee)

Consisting Essentially Of

Definition:
A transitional phrase that limits the scope of a claim to the specified materials or steps and those that do not materially affect the basic and novel characteristics of the claimed invention.

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.

Filing Receipt

Definition:
When an application is submitted via e-TEAS, the Office immediately issues a confirmation of filing via e-mail that includes the serial number and filing date.

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