Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D1085124 | Display screen or portion thereof with graphical user interface | — | 2025-07-22 |
| D1083984 | Display screen or portion thereof with graphical user interface | — | 2025-07-15 |
| 12107813 | Systems and methods for updating and presenting subject-specific compliance standard information | Anandan Chinnalagu | 2024-10-01 |
| 12047343 | Systems and methods for evaluating and displaying subject-specific compliance standard information | Anandan Chinnalagu | 2024-07-23 |
| 11781937 | Valve seal integrity verification systems and methods | Logan Smith, Dave B. Keiser | 2023-10-10 |
| 11677706 | Systems and methods for evaluating and displaying subject-specific compliance standard information | Anandan Chinnalagu | 2023-06-13 |
| 11093902 | Systems and methods for absentee management | — | 2021-08-17 |
| 6443423 | Load-profile compensating stuffing-box packing system for valves having stems of uniform cross-section | — | 2002-09-03 |
| 6354566 | Live loaded valve stem packing with shape memory alloy option | Hashimali Merchant | 2002-03-12 |
| 6276394 | Compact stem set with load-balanced rollers for non-lubricated double block and bleed plug valves | Kevin W. Lilie | 2001-08-21 |
| 5979488 | Bleed system | Kevin W. Lilie | 1999-11-09 |
| 5931192 | External unified integral bleed system for valves | Kevin W. Lilie | 1999-08-03 |
| 5542644 | Plug-valve having a plug assembly with retractible seals that can be removed without leakage | — | 1996-08-06 |
| 5392813 | Integral bleed system for valve | Hans M. Van Der Wiel | 1995-02-28 |
| 5385332 | Flow stabilized, retractable seal, double-block and bleed plug valve | — | 1995-01-31 |
| 5372352 | Apparatus for sealing a fluid carrying device | Hans M. Van Der Wiel | 1994-12-13 |
| 5011115 | Self supporting plug for a double block and bleed plug valve | Hans M. Van Der Wiel | 1991-04-30 |
| 4687179 | Automatic valve actuator and control system | — | 1987-08-18 |
| 4679764 | Automatic valve actuator and control system | Fred G. Chase, Sr., Gerard E. Ducharme | 1987-07-14 |
| 4617964 | Tight shut-off valve with flow control | — | 1986-10-21 |