Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6154133 | Exit guard system | Maurice V. Garoutte, Rick D. Thomason, David McGhee | 2000-11-28 |
| 4852888 | Electrically scoring dart board | Donald L. Luttermoser | 1989-08-01 |
| 4616836 | Reverse lip positive venting seal | Gordon T. Drygalski, Dennis L. Otto | 1986-10-14 |
| 4556225 | Reverse lip positive venting seal | Gordon T. Drygalski, Dennis L. Otto | 1985-12-03 |