EngCite — IEEE Citation Generator

How to Cite a Patent in IEEE

The format, a real copy-ready example, and a free tool that builds the citation for you. Updated for 2026.

Try examples:

IEEE format for a patent

J. K. Author, “Title of patent,” Country Patent Number, Mon. DD, Year.

Example

C. E. Shannon, “Communication system employing pulse code modulation,” U.S. Patent 2 801 281, Jul. 30, 1957.

In-text citation

IEEE uses a numbered in-text citation in square brackets, e.g. [1], placed where you refer to the source. Reuse the same number every time you cite that patent, and cite ranges as [1]–[3].

Handling missing information

Use the inventor as author, the patent title in quotes, the patent number, and the grant/issue date.

Before you copy the citation

  • List the inventor as author and retain the official patent title.
  • Include the country or issuing authority with the complete patent number.
  • Use the grant or issue date appropriate to the patent record you cite.

Common mistakes to avoid

  • Using the assignee as inventor without checking the patent record.
  • Confusing an application or publication number with the granted patent number.
  • Using a filing date when the required reference calls for the issue date.

FAQ

What is the IEEE format for a patent?

IEEE numbers references in the order they appear and lists them in square brackets, e.g. [1]. See the format pattern and example above for the patent fields and their order.

What fields does an IEEE patent citation need?

Patents do not use a DOI. Cite the inventor, the patent title in quotes, the country and patent number, and the grant/issue date.

Is this patent citation generator free?

Yes. You can generate, copy and export IEEE, APA and Harvard citations for free, with no account required.