Patent Terms Glossary

Patent

Definition:
A patent is a document that defines the right by law for inventors and assignees to make use of and exploit their inventions for a limited period of time.

Notice Of References Cited

Definition:
Also known as a PTO-892 form. A list of relevant references cited by a patent examiner in an Office action.

Reexamination Proceeding

Definition:
At any time during the enforceability of a patent any person may file a request for the USPTO to conduct a second examination of any claim of the patent on the basis of prior art patents or printed publications.

Classification

Definition:
Patents are classified (organized) in the U.S. by a system using a 3 digit class and a 3 digit subclass to describe every similar grouping of patent art.

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.

Certification Mark

Definition:
Any word, name, symbol, device, or any combination, used, or intended to be used, in commerce by someone other than its owner.

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