Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10598059 | Slotted snap-action valve assembly for exhaust system | Larry J. Geer, Erwin Peters, Stephen M. Thomas | 2020-03-24 |
| 10180092 | Flutter dampened exhaust valve | Larry J. Geer, Erwin Peters, Stephen M. Thomas | 2019-01-15 |
| 8657065 | Exhaust valve with resilient spring pad | — | 2014-02-25 |
| 8468813 | Snap-action valve for exhaust system | Howard C. Macaluso, Steven Clayton | 2013-06-25 |
| 8381401 | Method of installing rotatable flapper valve to an interior of a conduit | Jordan Sahs, Jason Lefler | 2013-02-26 |
| 8215103 | Snap-action valve for exhaust system | — | 2012-07-10 |
| 8191572 | Snap action valve with bumper pad | Jason Lefler, Jordan Sahs | 2012-06-05 |
| 7896130 | Snap action valve with inertia damper | Jordan Sahs, Jason Lefler | 2011-03-01 |
| 7775322 | Snap-action valve for exhaust system | — | 2010-08-17 |
| 7434570 | Snap-action valve for exhaust system | — | 2008-10-14 |
| 5519994 | Muffler with inlet pipe equalizer | — | 1996-05-28 |
| 5365025 | Low backpressure straight-through reactive and dissipative muffler | Leon A. Kraai, Robert L. Sager, Jr. | 1994-11-15 |
| 5064868 | Sprayable lightweight ablative coating | William G. Simpson, Max H. Sharpe | 1991-11-12 |
| 4953660 | Muffler with two part housing and flow tubes | Raymond S. Jewell, Jr. | 1990-09-04 |
| 4865154 | Muffler with drain holes | Roger D. Hanson | 1989-09-12 |
| 4457898 | Managanese compounds and sorption of gases using manganese compounds | Charles A. McAuliffe | 1984-07-03 |
| 4442297 | Manganese compounds and sorption of gases using manganese compounds | Charles A. McAuliffe | 1984-04-10 |