Issued Patents All Time
Showing 51–64 of 64 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7593802 | Lead-lag input filter arrangement for electro-pneumatic control loops | Annette Lynn Latwesen | 2009-09-22 |
| 7516043 | Triggered field device data collection in a process control system | Annette Lynn Latwesen | 2009-04-07 |
| 7458310 | Asymmetric volume booster arrangement for valve actuator | — | 2008-12-02 |
| 7349745 | Lead-lag input filter arrangement with adjustable initial conditions for electro-pneumatic control loops | — | 2008-03-25 |
| 7337041 | Feedback control methods and apparatus for electro-pneumatic control systems | Christopher S. Metschke | 2008-02-26 |
| 7039537 | Detection and discrimination of instabilities in process control loops | — | 2006-05-02 |
| 6999853 | Methods and apparatus for operating and performing diagnostics in a control loop of a control valve | Annette Lynn Latwesen | 2006-02-14 |
| 6954683 | Method and apparatus for performing diagnostics in a control loop of a control valve | Annette Lynn Latwesen | 2005-10-11 |
| 6804618 | Detection and discrimination of instabilities in process control loops | — | 2004-10-12 |
| 6678584 | Method and apparatus for performing diagnostics in a control loop of a control valve | Annette Lynn Latwesen | 2004-01-13 |
| 6466893 | Statistical determination of estimates of process control loop parameters | Annette Lynn Latwesen | 2002-10-15 |
| 6192321 | Method of and apparatus for deterministically obtaining measurements | Bruce F. Grumstrup, Jimmie L. Snowbarger, Eugene R. Taylor, Jr. | 2001-02-20 |
| 6128541 | Optimal auto-tuner for use in a process control network | — | 2000-10-03 |
| 5966679 | Method of and apparatus for nonobtrusively obtaining on-line measurements of a process control device parameter | Jimmie L. Snowbarger, Eugene R. Taylor, Jr., Bruce F. Grumstrup | 1999-10-12 |