Issued Patents All Time
Showing 1–25 of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12355235 | Process control instruments having local intrinsic safety barriers and methods of manufacturing the same | Chris Arnold, Gregory R. Bulleit, Davin S. Nicholas, Adam Joseph Wittkop, Marwan Brama | 2025-07-08 |
| 10749373 | Systems and methods for situation-dependent supercapacitor voltage control | Scott Losing, Zachary M. Bryant | 2020-08-18 |
| 10483792 | Methods and apparatus to prevent a false trigger of a shutdown function of a process control component | — | 2019-11-19 |
| 10353405 | Automatic calibration of position transmitter | Jimmie L. Snowbarger | 2019-07-16 |
| 10297936 | Electrical terminal having a cage clamp for wire termination | — | 2019-05-21 |
| 10185291 | System and method for shutting down a field device | Jimmie L. Snowbarger | 2019-01-22 |
| 10120392 | Apparatus, methods and articles of manufacture to calibrate valve-mounted instruments | Perry K. Carter | 2018-11-06 |
| 10090625 | Method of making an electrical terminal | — | 2018-10-02 |
| 9876349 | Intrinsically safe voltage clamping device | — | 2018-01-23 |
| 9768694 | Intrinsically safe voltage limiting shunt regulator circuit | Matthew J. Kemp, Davin S. Nicholas | 2017-09-19 |
| 9582378 | Control signal protection device | — | 2017-02-28 |
| 9343899 | Intrinsically safe voltage limiting shunt regulator circuit | Matthew J. Kemp, Davin S. Nicholas | 2016-05-17 |
| 9318891 | Control signal protection device | — | 2016-04-19 |
| 9203236 | Intrinsically safe voltage clamping device | — | 2015-12-01 |
| 9188239 | Apparatus, methods and articles of manufacture to calibrate valve-mounted instruments | Perry K. Carter | 2015-11-17 |
| 9063540 | Methods and apparatus to limit a change of a drive value in an electro-pneumatic controller | — | 2015-06-23 |
| 9033749 | Electrical terminal having a housing with a wire clamp to secure a wire to a connector pin | — | 2015-05-19 |
| 8570770 | Opto-isolator multi-voltage detection circuit | Clyde T. Eisenbeis | 2013-10-29 |
| 8321059 | Apparatus, methods and articles of manufacture to calibrate valve-mounted instruments | Perry K. Carter | 2012-11-27 |
| 8306637 | Methods and apparatus to limit a change of a drive value in an electro-pneumatic controller | — | 2012-11-06 |
| 8260563 | Common-mode noise reduction circuit | — | 2012-09-04 |
| 8193784 | Bidirectional DC to DC converter for power storage control in a power scavenging application | Adam Joseph Wittkop | 2012-06-05 |
| 7911189 | Input regulated DC to DC converter for power scavenging | Adam Joseph Wittkop | 2011-03-22 |
| 7852610 | Flameproof apparatus using non-grounded energy-limiting barrier | Ronald L. Uhlenberg, Riyaz M. Ali, Jimmie L. Snowbarger, Clyde T. Eisenbeis | 2010-12-14 |
| 7556238 | Emergency shutdown system | — | 2009-07-07 |