Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6944524 | Air cylinder controller | William W. Shier, Lee H. Theusch | 2005-09-13 |
| 5120939 | Databaseless security system | David Michael Claus, Roy S. Coutinho, Kevin D. Murphy, Kenneth R. Zempol | 1992-06-09 |