| 12425062 |
Load adapter module for wireless discrete input/output field device |
Robert Michael Weinberger, James A. Johnson, Greg E. Gindele, Ryan Thomas Lindsey |
2025-09-23 |
| 12152912 |
Wireless process variable transmitter with battery power source |
Theodore Henry Schnaare, Cory Michael Robinson, Nicholas Aaron Wienhold |
2024-11-26 |
| 9182256 |
Process variable transmitter with two-wire process control loop diagnostics |
David L. Wehrs, Gregory J. LeCuyer, Jessica Lo, Steven J. McCoy |
2015-11-10 |
| 8787848 |
RF adapter for field device with low voltage intrinsic safety clamping |
John A. Kielb, Kelly M. Orth |
2014-07-22 |
| 8694060 |
Form factor and electromagnetic interference protection for process device wireless adapters |
Joel David Vanderaa, Christina A. Grunig, Ronald F. Hurd, Chad M. McGuire, Steven B. Paullus |
2014-04-08 |
| 8208581 |
Two wire transmitter with isolated can output |
Kelly M. Orth |
2012-06-26 |
| 8160535 |
RF adapter for field device |
John A. Kielb, Robert J. Karschnia, Kelly M. Orth, David A. Broden |
2012-04-17 |
| 8049361 |
RF adapter for field device with loop current bypass |
John A. Kielb |
2011-11-01 |
| 7956738 |
Process field device with radio frequency communication |
Robert J. Karschnia, Charles R. Willcox, David A. Broden, Kelly M. Orth |
2011-06-07 |
| 7773715 |
Two wire transmitter with isolated can output |
Kelly M. Orth |
2010-08-10 |
| 7679033 |
Process field device temperature control |
Kelly M. Orth |
2010-03-16 |
| 7262693 |
Process field device with radio frequency communication |
Robert J. Karschnia, Charles R. Willcox, David A. Broden, Kelly M. Orth |
2007-08-28 |
| 6813318 |
Process transmitter having a step-up converter for powering analog components |
Weston Roper, David G. Tyson |
2004-11-02 |
| 6765968 |
Process transmitter with local databus |
Richard L. Nelson, Weston Roper |
2004-07-20 |
| 6609427 |
Gas fill system in a pressure transmitter |
Robert C. Hedtke, Weston Roper, Mark Fandrey, Roger L. Frick, Scott Nelson +3 more |
2003-08-26 |
| 6593857 |
Modular process transmitter having a scalable EMI/RFI filtering architecture |
Weston Roper, Todd M. Berge, David G. Tyson, Richard L. Nelson |
2003-07-15 |
| 6504489 |
Process control transmitter having an externally accessible DC circuit common |
Weston Roper, Richard L. Nelson |
2003-01-07 |
| 6487912 |
Preinstallation of a pressure sensor module |
Steven M. Behm, Richard L. Nelson, Robert C. Hedtke, Roger L. Frick, Scott Nelson +4 more |
2002-12-03 |
| 6480131 |
Multiple die industrial process control transmitter |
Weston Roper, David G. Tyson, Michael J. Gaboury |
2002-11-12 |
| 6307483 |
Conversion circuit for process control system |
Stephen D. Anderson, Bennett L. Louwagie, Todd A. Piechowski, Gregory C. Brown |
2001-10-23 |
| 5963147 |
Conversion circuit for process control system |
Stephen D. Anderson, Bennett L. Louwagie, Todd A. Piechowski, Gregory C. Brown |
1999-10-05 |
| 5650777 |
Conversion circuit for process control system |
Stephen D. Anderson, Bennett L. Louwagie, Todd A. Piechowski |
1997-07-22 |
| 5481200 |
Field transmitter built-in test equipment |
Kevin D. Voegele, Jane B. Lanctot |
1996-01-02 |
| 5245333 |
Three wire low power transmitter |
Stephen D. Anderson, Roger L. Frick, Glen Monzo |
1993-09-14 |
| 4878012 |
Charge balanced feedback transmitter |
John P. Schulte, Kelly M. Orth, Roger L. Frick, Randy Kenneth Paschke |
1989-10-31 |