Inventor · disambiguated record
Bruce F. Grumstrup
Also filed as: GRUMSTRUP BRUCE · GRUMSTRUP BRUCE F · GRUMSTRUP BRUCE FREDERICK
17 granted patents·1 pending application·847 citations·filing 1994–2016
95Inventor score
Files withFISHER CONTROLS INT10FISHER CONTROLS INT LLC4CARTER PERRY KEITH1GRUMSTRUP BRUCE FREDERICK1JUNK KENNETH W1
Top patents by PatentIndex Score
18 records- 0197US6186167B1Emergency shutdown test systemFISHER CONTROLS INT·Filed 1999·Granted Feb 13, 2001·106 cites·11 claims
- 0295US5451923ACommunication system and methodFISHER CONTROLS INT·Filed 1994·Granted Sep 19, 1995·162 cites·42 claims
- 0394US6725167B2Flow measurement module and methodFISHER CONTROLS INT·Filed 2002·Granted Apr 20, 2004·74 cites·43 claims
- 0493US5687098ADevice data acquisitionFISHER CONTROLS INT·Filed 1995·Granted Nov 11, 1997·96 cites·18 claims
- 0591US6192321B1Method of and apparatus for deterministically obtaining measurementsFISHER CONTROLS INT·Filed 1997·Granted Feb 20, 2001·85 cites·32 claims
- 0691US5966679AMethod of and apparatus for nonobtrusively obtaining on-line measurements of a process control device parameterFISHER CONTROLS INT·Filed 1997·Granted Oct 12, 1999·68 cites·32 claims
- 0790US6895351B2Regulator flow measurement apparatusFISHER CONTROLS INT·Filed 2003·Granted May 17, 2005·47 cites·9 claims
- 0888US5684451ACommunication system and methodFISHER CONTROLS INT·Filed 1995·Granted Nov 4, 1997·97 cites·18 claims
- 0987US10240687B2Methods and apparatus of testing a solenoid valve of an emergency valve via a positionerFISHER CONTROLS INT LLC·Filed 2016·Granted Mar 26, 2019·4 cites·21 claims
- 1086US9465391B2Valve positioner with overpressure protection capabilitiesFISHER CONTROLS INT LLC·Filed 2014·Granted Oct 11, 2016·14 cites·15 claims
- 1179US9008804B2Method and apparatus for operating field devices via a portable communicatorJUNK KENNETH W·Filed 2009·Granted Apr 14, 2015·10 cites·21 claims
- 1266US6023763AMethod of and apparatus for protecting and upgrading software using a removable hardlockFISHER CONTROLS INT·Filed 1997·Granted Feb 8, 2000·59 cites·21 claims
- 1365US8421643B2Automatic valve seating integrity testGRUMSTRUP BRUCE FREDERICK·Filed 2010·Granted Apr 16, 2013·3 cites·40 claims
- 1463US10007279B2Valve positioner with overpressure protection capabilitiesFISHER CONTROLS INT LLC·Filed 2016·Granted Jun 26, 2018·1 cites·8 claims
- 1563US5502999AElectro-pneumatic converter calibrationFISHER CONTROLS INT·Filed 1994·Granted Apr 2, 1996·20 cites·15 claims
- 1654US8910665B2Methods and apparatus for bypassing a positioner in an active control loopCARTER PERRY KEITH·Filed 2011·Granted Dec 16, 2014·1 cites·17 claims
- 1747US10890298B2Liquid detection device with wireless communicatorFISHER CONTROLS INT LLC·Filed 2016·Granted Jan 12, 2021·0 cites·26 claims
- 1847US2004046670A1Gas blanket management system and methodFiled 2002·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →