Issued Patents All Time
Showing 26–41 of 41 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9626157 | Method of projecting a workspace and system using the same | Wai-Tung Cheung, Shih-Cheng Lan, Ho-Cheung Cheung | 2017-04-18 |
| 9593782 | Fluid regulator with field convertible slam-shut device | G. Glynn Crutsinger, Horatiu P. Tripon | 2017-03-14 |
| 9587765 | Sound treatment assembly for a fluid transmission line | Robert J. Watson | 2017-03-07 |
| 9279516 | Fluid regulator with balancing system | Alexandru Gaal, Horatiu P. Tripon | 2016-03-08 |
| 9134963 | Method of unifying information and tool from a plurality of information sources | Chen-Chun Lai, Shih-Cheng Lan, Shih-Yi Yeh, Wai-Tung Cheung, Ho-Cheung Cheung | 2015-09-15 |
| 9133941 | Valves having removable internal actuation mechanisms | Tung K. Nguyen, Roy Ronald Pelfrey | 2015-09-15 |
| 8919369 | Fluid flow control members for use with valves | Eric Alan Miller, Roy Ronald Pelfrey, Yan Tao Sun, Fan Jian Jun | 2014-12-30 |
| 8671988 | Fluid flow control members for use with valves | Eric Alan Miller, Roy Ronald Pelfrey | 2014-03-18 |
| 8556233 | Field removable bonnet assemblies for use with valves | Matthew W. Hanusa, Roy Ronald Pelfrey, Eric Alan Miller | 2013-10-15 |
| 8517046 | Redundant metal-to-metal seals for use with internal valves | Roy Ronald Pelfrey, Eric Alan Miller | 2013-08-27 |
| 8353310 | Valves having removable internal actuation mechanisms | Tung K. Nguyen, Roy Ronald Pelfrey | 2013-01-15 |
| 8281804 | Pressure relief valves | Roy Ronald Pelfrey | 2012-10-09 |
| 8262057 | Flow controlled actuator apparatus for use with self-closing stop valves | Yin Zhuang, Lu Cang, Fan Jian Jun | 2012-09-11 |
| 8256462 | Fluid flow control members for use with valves | Eric Alan Miller, Roy Ronald Pelfrey, Yan Tao Sun, Fan Jian Jun | 2012-09-04 |
| 8146885 | Field removable bonnet assemblies for use with valves | Matthew W. Hanusa, Roy Ronald Pelfrey, Eric Alan Miller | 2012-04-03 |
| 7327120 | Charger assembly for a power cell for an electrical tool | — | 2008-02-05 |