Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6588508 | Method and apparatus to reduce trapped pressure in a downhole tool | Robert A. Parrott, Haoming Li, Anthony P. Vovers, Cynthia L. Hickson, John Corben | 2003-07-08 |
| 5095415 | Light fixture for externally illuminated sign | David L. Wortman, Sanford Cobb, Jr. | 1992-03-10 |
| 4501937 | Integral multiswitch display panel | Jack J. Zalewski | 1985-02-26 |
| 4362916 | Miniature precision snap action switch having operating lever providing large overtravel | — | 1982-12-07 |