Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D313834 | Sprinkler for fighting petroleum fires and the like | David W. Owens | 1991-01-15 |
| D313459 | Sprinkler for fighting fires in oil refineries and the like | David W. Owens | 1991-01-01 |
| 4836291 | Portable sprinkler and process for fighting fires in oil refineries and the like | David W. Owens | 1989-06-06 |