Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7044149 | Pipe fitting | Robert Philip Lennard | 2006-05-16 |
| 4773145 | Method of constructing a cylindrical rotor assembly for a rotary regenerative heat exchanger | Roderick J. Baker, James A. Groves, John Irving | 1988-09-27 |