Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11562726 | Plates and plate assemblies for noise attenuators and other devices and methods making the same | Doug Scheffler, Roy Ronald Pelfrey | 2023-01-24 |
| 11282491 | Plates and plate assemblies for noise attenuators and other devices and methods making the same | — | 2022-03-22 |
| 10907746 | Low flow-restriction shut-off valve with excess flow closure functionality | Roy Ronald Pelfrey, Tung K. Nguyen, Nadim Ahmed | 2021-02-02 |
| 10584527 | Barrier operator mechanical transmission assembly | Leroy G. Krupke, Amit Ashok Patel | 2020-03-10 |
| 10344880 | Actuator assembly for a low flow-restriction shut-off valve with excess flow closure functionality | Roy Ronald Pelfrey, Tung K. Nguyen, Nadim Ahmed | 2019-07-09 |
| 10132418 | Low flow-restriction shut-off valve with excess flow closure functionality | — | 2018-11-20 |
| 10088054 | In-line servicable shutoff valve with excess flow | Roy Ronald Pelfrey, Nadim Ahmed | 2018-10-02 |
| 9752369 | Barrier operator mechanical transmission assembly | David P. Bresson, Leroy G. Krupke, Amit Ashok Patel | 2017-09-05 |
| 9739408 | Noise attenuation apparatus for fluid devices | Joshua Logan Tecson, Tung K. Nguyen | 2017-08-22 |
| 9609944 | Modular portable bar system | Marisol Diaz | 2017-04-04 |
| 9334974 | Pilot operated relief valve with dual pilot regulators | Khashayar A. Nashery, Bryan J. Steger | 2016-05-10 |
| D751811 | Emergency infant carrier | — | 2016-03-22 |
| 7967051 | Counterbalance system for upward acting door | — | 2011-06-28 |
| 7364051 | Remote actuator for ball injector | F. Rand Underwood | 2008-04-29 |
| 6945569 | Enhanced durability hammer union | Mark D. Matzner | 2005-09-20 |