Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5878786 | Otangular fitting family for flat-oval duct systems and method for making same | — | 1999-03-09 |
| 5660212 | Integral HVAC reinforced duct system and method for reinforcing duct | — | 1997-08-26 |
| 4241309 | Synchronizing method and apparatus | — | 1980-12-23 |
| 4233513 | Gas analyzer | Kevin Gregg Williams, Irvin G. Burough | 1980-11-11 |