Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5404762 | Quick-change filter cartridge | John C. Rodgers, Andrew R. McFarland | 1995-04-11 |
| 5337603 | Elbow mass flow meter | Andrew R. McFarland, John C. Rodgers, David C. Nelson | 1994-08-16 |