What information is required to cite a patent?

Include the inventor(s) name, patent issue date, patent title, patent number, and patent office location.

Do I cite patents pending differently than issued patents?

Yes. Patents pending include the filing date, while issued patents use the issue date.

Where can I find patent information for citations?

US patents can be found on USPTO.gov, while international patents are searchable through WIPO.

How to Cite a Patent in APA Format

Understanding Patent Citations in APA Format

Patents are official documents that grant inventors exclusive rights to their inventions. Citing patents in academic work requires specific information about the inventors, filing dates, and patent numbers.

APA format for patents includes the inventor names, patent title, patent number, issue date, and patent office information. The citation format accommodates both US and international patents.

Format for US Patents (Issued)

Inventor, A. A., & Inventor, B. B. (Patent Date). Patent title. Patent number. U.S. Patent Office.

Example:

Smith, J. K., & Johnson, M. L. (2023, March 21). Machine learning algorithm for image recognition [Patent US 11,234,567]. U.S. Patent and Trademark Office.

Format for International Patents

Inventor, A. A., & Inventor, B. B. (Year, Month Date). Patent title. Patent number. Patent Office Country.

Example:

Garcia, M. S., & Lee, J. H. (2023, February 14). Renewable energy conversion system [Patent EP 3,789,012]. European Patent Office.

Key Citation Elements

Inventor Names

List inventors in the order they appear on the patent document. Use standard name formatting: Last Name, First Initial.

Patent Issue Date

Use the date when the patent was officially issued. Format as: Year, Month Date.

Patent Title

The patent title appears in square brackets and uses sentence case capitalization.

Patent Number

Include the full patent number assigned by the patent office. For US patents, use the format “Patent US XXXXXXX” or “U.S. Patent No. XXXXXXX”.

Patent Office

Specify the country or region’s patent office (U.S. Patent and Trademark Office, European Patent Office, etc.).

Detailed Examples

Multiple Inventors

Williams, K. A., Thompson, R. J., & Anderson, B. P. (2023, January 15). Advanced biodegradable polymer [Patent US 11,098,765]. U.S. Patent and Trademark Office.

Design Patent

Martinez, R. C. (2022, December 10). Ergonomic chair design [Patent US D 987,654]. U.S. Patent and Trademark Office.

International Patent

Johnson, T. L. (2023, February 28). Quantum computing processor [Patent WO 2023/012,345]. World Intellectual Property Organization.

Patent Pending

Lee, S. J., & White, M. K. (2023). Advanced water filtration system [Patent pending]. Submitted to U.S. Patent and Trademark Office.

In-Text Citations for Patents

Use author-date format for in-text citations:

(Smith & Johnson, 2023)

For specific technical details:

(Smith & Johnson, 2023, Patent US 11,234,567)

Accessing Patent Information

Patents can be accessed through several databases:

United States Patents

USPTO.gov (United States Patent and Trademark Office)
Google Patents (patents.google.com)
Free Patents Online (freepatentsonline.com)

International Patents

WIPO (World Intellectual Property Organization)
National patent office websites
International patent databases

Special Cases in Patent Citations

Patent Published But Not Yet Issued

Garcia, M. S. (2023). Sustainable manufacturing process [Patent application 2023/123,456]. Patent Office.

Patent with Corporate Assignee

Smith, J. K. (2023, March 12). Automated drug discovery system [Patent US 11,345,678]. U.S. Patent and Trademark Office, assigned to BioTech Innovations Corp.

Using GenText for Patent Citation Management

Patents are complex technical documents requiring precise citation information. GenText assists by:

Formatting patent citations in correct APA style
Tracking patent numbers and issue dates
Organizing patents by inventor, technology, or field
Managing both domestic and international patents
Converting between citation styles
Generating patent reference lists
Maintaining consistent formatting for patent portfolios

Common Mistakes with Patent Citations

Incorrect patent number formatting: Use the official format from the patent office.
Missing inventor information: Include all inventors in the correct order.
Using publication date instead of issue date: Verify which date the patent office provides.
Omitting patent office location: Specify which office issued the patent.
Inconsistent title formatting: Use sentence case consistently.

Checklist for Patent Citations

All inventor names are correctly formatted
Patent issue date is complete and accurate
Patent title is in square brackets with sentence case
Patent number is in correct format
Patent office is clearly identified
Country or region is specified
URL (if accessed online) is included
In-text citation uses author-date format

Understanding Patent Types

Different patent types have slightly different citation considerations:

Utility Patents: Protect new inventions or improvements
Design Patents: Protect ornamental designs
Plant Patents: Protect new plant varieties
Software Patents: Protect computer algorithms and programs

Each type maintains the same basic citation format but may include specific technical details.

Patents represent significant intellectual contributions and technological advances. Proper citation acknowledges the inventors’ work and provides readers with access to detailed technical specifications.