Patents Issued in 1989
- December 26, 1989
- December 19, 1989
- December 12, 1989
- December 5, 1989
- November 28, 1989
- November 21, 1989
- November 14, 1989
- November 7, 1989
- October 31, 1989
- October 24, 1989
- October 17, 1989
- October 10, 1989
- October 3, 1989
- September 26, 1989
- September 19, 1989
- September 12, 1989
- September 5, 1989
- August 29, 1989
- August 22, 1989
- August 18, 1989
- August 15, 1989
- August 8, 1989
- August 1, 1989
- July 25, 1989
- July 18, 1989
- July 11, 1989
- July 4, 1989
- June 27, 1989
- June 20, 1989
- June 13, 1989
- June 6, 1989
- May 30, 1989
- May 23, 1989
- May 18, 1989
- May 16, 1989
- May 9, 1989
- May 2, 1989
- April 25, 1989
- April 18, 1989
- April 11, 1989
- April 4, 1989
- March 28, 1989
- March 21, 1989
- March 14, 1989
- March 7, 1989
- February 28, 1989
- February 21, 1989
- February 14, 1989
- February 7, 1989
- January 31, 1989
- January 24, 1989
- January 17, 1989
- January 10, 1989
- January 3, 1989