Patent [from Print source using APA 6th 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 (Gort-Barten, 2002), has been ...


  • Keep the capital P in Patent and the capital N for No. as the patent is considered to be an item in a series.
  • 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.