Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10386862 | Cut-off transition for control valve positioners | Kenneth W. Junk, Michel K. Lovell, Jeffrey Dean Seyller | 2019-08-20 |
| 10353405 | Automatic calibration of position transmitter | Stephen G. Seberger | 2019-07-16 |
| 10295977 | Smart auto reset for digital positioners connected to a local control panel or push button | Stanley Felix Amirthasamy | 2019-05-21 |
| 10240687 | Methods and apparatus of testing a solenoid valve of an emergency valve via a positioner | Kenneth W. Junk, Shannon Eugene Jelken, Bruce F. Grumstrup | 2019-03-26 |
| 10185291 | System and method for shutting down a field device | Stephen G. Seberger | 2019-01-22 |
| 10185330 | Methods and systems for adjusting travel sensor alignment on process control valves | Perry K. Carter | 2019-01-22 |
| 10007279 | Valve positioner with overpressure protection capabilities | Bruce F. Grumstrup, Lorin Dion Miller, Adam Joseph Wittkop | 2018-06-26 |
| 9465391 | Valve positioner with overpressure protection capabilities | Bruce F. Grumstrup, Lorin Dion Miller, Adam Joseph Wittkop | 2016-10-11 |
| 8996328 | Methods, apparatus and articles of manufacture to test safety instrumented system solenoids | — | 2015-03-31 |
| 8684021 | Versatile emergency shutdown device controller implementing a pneumatic test for a system instrument device | — | 2014-04-01 |
| 8104495 | Versatile emergency shutdown device controller implementing a pneumatic test for a system instrument device | — | 2012-01-31 |
| 7852610 | Flameproof apparatus using non-grounded energy-limiting barrier | Ronald L. Uhlenberg, Stephen G. Seberger, Riyaz M. Ali, Clyde T. Eisenbeis | 2010-12-14 |
| 7621293 | Versatile emergency shutdown device controller implementing a pneumatic test for a system instrument device | — | 2009-11-24 |
| 7222016 | System and method for transfer of feedback control for a process control device | Stephen G. Seberger, LeDoyle Pingel | 2007-05-22 |
| 7079021 | System to manually initiate an emergency shutdown test and collect diagnostic data in a process control environment | Riyaz M. Ali | 2006-07-18 |
| 6862547 | Control device test system with a remote switch activation | Riyaz M. Ali, Patrick S. Flanders | 2005-03-01 |
| 6192321 | Method of and apparatus for deterministically obtaining measurements | Bruce F. Grumstrup, Kenneth W. Junk, Eugene R. Taylor, Jr. | 2001-02-20 |
| 5966679 | Method of and apparatus for nonobtrusively obtaining on-line measurements of a process control device parameter | Eugene R. Taylor, Jr., Bruce F. Grumstrup, Kenneth W. Junk | 1999-10-12 |
| 5687098 | Device data acquisition | Bruce F. Grumstrup, Bruce Johnson | 1997-11-11 |