Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10253664 | Passive exhaust valve assembly with overlapping slip joint and method of forming and installation | Justin Middleton, Bradley B. Walworth, Stephen M. Thomas, Larry J. Geer, Erwin Peters | 2019-04-09 |
| 10113468 | Mixer assembly for exhaust systems and method of forming the same | — | 2018-10-30 |
| 9605581 | Passive exhaust valve with floating spring stop | Justin Middleton, Robert L Middleton, Sr. | 2017-03-28 |
| 9494194 | Process for making an interlocking flanged bushing and products made by this process | — | 2016-11-15 |
| 9464559 | Passive exhaust valve assembly and forming method | Justin Middleton | 2016-10-11 |
| 9186714 | Process for making a stamped tubular form with integral bracket and products made by the process | — | 2015-11-17 |
| 9050639 | Process for making an interlocking flanged bushing and products made by this process | — | 2015-06-09 |
| 8356396 | Method for making threaded tube | Douglas M. Johnson, Robert L Middleton, Sr. | 2013-01-22 |
| 8091201 | Stamped tubular member and method and apparatus for making same | Douglas M. Johnson, Robert L Middleton, Sr., Robert E. Leedy, John A. Nobel | 2012-01-10 |