Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9605581 | Passive exhaust valve with floating spring stop | Robert Leroy Middleton, Jr., Justin Middleton | 2017-03-28 |
| 8356396 | Method for making threaded tube | Douglas M. Johnson, Robert Leroy Middleton, Jr. | 2013-01-22 |
| 8091201 | Stamped tubular member and method and apparatus for making same | Douglas M. Johnson, Robert Leroy Middleton, Jr., Robert E. Leedy, John A. Nobel | 2012-01-10 |