Grumstrup; Bruce F.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Grumstrup; Bruce F..The latest application filed is for "liquid detection device with wireless communicator".
- Grumstrup; Bruce F. - Marshalltown IA
| Patent | Date |
|---|---|
| Liquid detection device with wireless communicator Grant 10,890,298 - Grumstrup January 12, 2 | 2021-01-12 |
| Liquid Detection Device With Wireless Communicator App 20180066804 - Grumstrup; Bruce F. | 2018-03-08 |
| Methods and Apparatus to Provide a Role-Based User Interface App 20150105878 - Jones; Bryan Michael ; et al. | 2015-04-16 |
| Method and apparatus for operating field devices via a portable communicator Grant 9,008,804 - Junk , et al. April 14, 2 | 2015-04-14 |
| Automatic Valve Seating Integrity Test App 20120139725 - Grumstrup; Bruce F. | 2012-06-07 |
| Method and Apparatus for Operating Field Devices via a Portable Communicator App 20100145476 - Junk; Kenneth W. ; et al. | 2010-06-10 |
| Regulator flow measurement apparatus Grant 6,895,351 - Grumstrup , et al. May 17, 2 | 2005-05-17 |
| Gas blanket management system and method App 20040046670 - Adams, Paul R. ; et al. | 2004-03-11 |
| Regulator flow measurement apparatus App 20030233203 - Grumstrup, Bruce F. ; et al. | 2003-12-18 |
| Emergency shutdown test system Grant 6,186,167 - Grumstrup , et al. February 13, 2 | 2001-02-13 |
| Method of and apparatus for nonobtrusively obtaining on-line measurements of a process control device parameter Grant 5,966,679 - Snowbarger , et al. October 12, 1 | 1999-10-12 |
| Communication system and method Grant 5,684,451 - Seberger , et al. * November 4, 1 | 1997-11-04 |
| Electro-pneumatic converter calibration Grant 5,502,999 - Seberger , et al. April 2, 1 | 1996-04-02 |
| Communication system and method Grant 5,451,923 - Seberger , et al. September 19, 1 | 1995-09-19 |
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