Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5967238 | Thermally responsive frangible bulb | Stephen James Nettleship, Brian Ernest Daly | 1999-10-19 |
| 4901799 | Sprinkler head having protuberant ridge valve seat | James M. Martin | 1990-02-20 |
| 4861075 | Coupling for rigidly connecting pipe sections | Michael W. Horgan | 1989-08-29 |
| 4423800 | Shock absorber with improved compression valve mechanism | Michael H. Kobiske | 1984-01-03 |
| 4273195 | Fire protection sprinkler head with air-current diverting fins | Michael A. Fischer | 1981-06-16 |
| 4182438 | Shock absorber with improved compression valve assembly | — | 1980-01-08 |