Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6390447 | Valved conduit and method of making a valved conduit | — | 2002-05-21 |
| 6247490 | Booster station | David Oswalt | 2001-06-19 |
| 4730355 | Pneumatic wave generator employing four-way valve arrangement | Mark L. Kreinbihl, Kevin D. Pramer, Robert P. Miller | 1988-03-15 |