Patent [from Print source using APA 5th ed.]


Treat the inventor of the patent as the author. The year should be the year the patent was granted. The patent number is a unique identifier and is put in the title place. For place of publication and publisher, give the details of the official source from which the patent information can be recovered.

Standard Form

Inventor, Initials. (year). Patent number. Place: Issuing office.


Gort-Barten, L. (2002). U.K. Patent No. GB2336990B. London: Patent Office.

Lauerie, J. A. (2004). U.K. Patent No. GB2376996B. London: Patent Office.

Citation in Text

... the kettle filter, U.K. Patent No. GB2336990B (2002), has been ...


  • For U.S. Patents, the place of publication and publisher are likely to be:

Washington, DC: U.S. Patent and Trademark Office.

Otherwise as above, substituting U.S. for U.K.