Examples of Software Patents

Gordon Irlam

This list comprises both a sampling of software patents chosen more or less at random, and a number of famous software patents.

Abstracts for these patents are arranged in numerical order on the pages that follow. Sometimes the abstract fails to clearly identify the scope of the patent. The following synopses are therefore based on a quick reading of the claims.

Operating Systems

File Systems

Graphics and Windowing Systems

Compilers and Simulators

Cryptography and Data Compression


Word Processors