First initial of author. Author's last name, “Title of patent,” U.S. Patent x xxx xxx, Abbrev. Month, day, year.
- J. Wilkinson, “Nonlinear resonant circuit devices,” U.S. Patent 3 624 125, Jul. 16, 1990.
- T. Mei and T. Yang, “Circuit and method for average–current regulation of light-emitting diodes,” U.S. Patent 7 898 187 B1, 2011, Mar. 1, 2012.
If you found the patent online the format is different:
Name of the invention, by inventor’s name. (year, month day). Patent Number [Type of medium]. Available: URL
- Screwless clip mounted computer drive, by D. Williams. (2005, Apr. 26). U.S. Patent 6,885,550 [Online]. Available: http://patft.uspto.gov/netacgi/6,885,550
If several dates are listed for the patent use the "Issued Date" for your citation.
