| 8180466 |
Process device with supervisory overlayer |
Dale Scott Davis, Robert C. Hedtke, Scott Nelson |
2012-05-15 |
| 7991582 |
Process device with diagnostic annunciation |
Dale Scott Davis |
2011-08-02 |
| 7630861 |
Dedicated process diagnostic device |
Scott Nelson, Dale Scott Davis, Richard L. Nelson, Amy K. Johnson, Gregory C. Brown |
2009-12-08 |
| 7627441 |
Process device with vibration based diagnostics |
Chad C. Blumeyer |
2009-12-01 |
| 7464721 |
Process equipment validation |
Dale Henry Perry, Mark S. Schumacher, Garrie Huisenga |
2008-12-16 |
| 7321846 |
Two-wire process control loop diagnostics |
Garrie Huisenga, Donald R. Lattimer |
2008-01-22 |
| 7280048 |
Process control loop current verification |
Garrie Huisenga, James A. Johnson |
2007-10-09 |
| 7098798 |
Process device with loop override |
Garrie Huisenga |
2006-08-29 |
| 7018800 |
Process device with quiescent current diagnostics |
Garrie Huisenga |
2006-03-28 |
| 6006338 |
Process transmitter communication circuit |
Grant Bradley Edwards, Richard L. Nelson, David L. Pederson |
1999-12-21 |
| 5847567 |
Microwave level gauge with remote transducer |
John A. Kielb, Grant Bradley Edwards, Donald F. Palan |
1998-12-08 |
| 5710552 |
Barrier device |
Steven J. McCoy, Mark S. Schumacher, John A. Kielb, Donald F. Palan, Grant Bradley Edwards +1 more |
1998-01-20 |
| 5410730 |
Interface controller for matching a process address field from a plurality of fields and generating a corresponding device address field |
David L. Pederson |
1995-04-25 |
| 5323289 |
Lightning protection for field mounted instruments |
Richard L. Nelson |
1994-06-21 |
| 4804958 |
Two-wire transmitter with threshold detection circuit |
— |
1989-02-14 |