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Citing Patent Literature
Smith, I. M. (1988). U.S. Patent No. 123,445. Washington, DC: U.S. Patent and Trademark Office
U.S. Patent No. 123,445 (1988)
(U.S. Patent No. 123,445, 1998)
 J. K. Author, “Title of patent,” U.S. Patent x xxx xxx, Abbrev. Month, day, year.
 J. P. Wilkinson, “Nonlinear resonant circuit devices,” U.S. Patent 3 624 125, July 16, 1990.
NOTE: Use “issued date” if several dates are given.
Sheem, S. K. Low-Cost Fiber Optic Pressure Sensor. U.S. Patent 6,738,537, May 18, 2004.
Petrovick, P. R.; Carlini, E. Antiulcerogenic Preparation from Maytenus ilicifolia
and Obtaintion Process. Br. Patent PI 994502, March 6, 1999.
Langhals, H.; Wetzel, F. Perylene Pigments with Metallic Effects. Ger. Offen. DE
10357978.8, Dec 11, 2003; Chem. Abstr. 2005, 143, 134834.
Shimizu, Y.; Kajiyama, H. (Kanebo, Ltd., Japan; Kanebo Synthetic Fibers, Ltd.).
Jpn. Kokai Tokkyo Koho JP 2004176197 A2 20040624, 2004.
Names, Creator. Patent title. Patent number, and year of filing.
Iizuka, Masanori, and Hideki Tanaka. Cement admixture. US Patent 4,586,960, filed June 26, 1984, and issued May 6, 1986.
This style manual does not specifically mention how to cite a patent; however, it can be extrapolated based on the typical MLA style for other types of materials.
Last Name, First Name. "Patent name." Patent XXX. Date.
(The date must be in Day Month Year format.)
Saunders, Terry. "Scraper plane." CA Patent 2,477,363. 10 August 2004.
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