Bruce F. Grumstrup

Person

Marshalltown, IA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Liquid detection device with wireless communicator
- Patent number 10,890,298
- Issue date Jan 12, 2021
- Fisher Controls International LLC
- Bruce F. Grumstrup
- F17 - STORING OF DISTRIBUTING GASES OR LIQUIDS
Information Patent Grant
Methods and apparatus of testing a solenoid valve of an emergency v...
- Patent number 10,240,687
- Issue date Mar 26, 2019
- Fisher Controls International LLC
- Kenneth Junk
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information Patent Grant
Valve positioner with overpressure protection capabilities
- Patent number 10,007,279
- Issue date Jun 26, 2018
- Fisher Controls International LLC
- Bruce Frederick Grumstrup
- G05 - CONTROLLING REGULATING
Information Patent Grant
Valve positioner with overpressure protection capabilities
- Patent number 9,465,391
- Issue date Oct 11, 2016
- Fisher Controls International LLC
- Bruce Frederick Grumstrup
- G05 - CONTROLLING REGULATING
Information Patent Grant
Method and apparatus for operating field devices via a portable com...
- Patent number 9,008,804
- Issue date Apr 14, 2015
- Fisher Controls International LLC
- Kenneth W. Junk
- G05 - CONTROLLING REGULATING
Information Patent Grant
Methods and apparatus for bypassing a positioner in an active contr...
- Patent number 8,910,665
- Issue date Dec 16, 2014
- Fisher Controls International LLC
- Perry Keith Carter
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information Patent Grant
Automatic valve seating integrity test
- Patent number 8,421,643
- Issue date Apr 16, 2013
- Fisher Controls International LLC
- Bruce Frederick Grumstrup
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Regulator flow measurement apparatus
- Patent number 6,895,351
- Issue date May 17, 2005
- Fisher Controls International LLC
- Bruce F. Grumstrup
- G01 - MEASURING TESTING
Information Patent Grant
Flow measurement module and method
- Patent number 6,725,167
- Issue date Apr 20, 2004
- Fisher Controls International LLC
- Bruce Frederick Grumstrup
- G05 - CONTROLLING REGULATING
Information Patent Grant
Method of and apparatus for deterministically obtaining measurements
- Patent number 6,192,321
- Issue date Feb 20, 2001
- Fisher Controls International, Inc.
- Bruce F. Grumstrup
- G05 - CONTROLLING REGULATING
Information Patent Grant
Emergency shutdown test system
- Patent number 6,186,167
- Issue date Feb 13, 2001
- Fisher Controls International Inc.
- Bruce F. Grumstrup
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Method of and apparatus for protecting and upgrading software using...
- Patent number 6,023,763
- Issue date Feb 8, 2000
- Fisher Controls International, Inc.
- Bruce F. Grumstrup
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method of and apparatus for nonobtrusively obtaining on-line measur...
- Patent number 5,966,679
- Issue date Oct 12, 1999
- Fisher Controls International, Inc.
- Jimmie L. Snowbarger
- G05 - CONTROLLING REGULATING
Information Patent Grant
Device data acquisition
- Patent number 5,687,098
- Issue date Nov 11, 1997
- Fisher Controls International, Inc.
- Bruce F. Grumstrup
- G05 - CONTROLLING REGULATING
Information Patent Grant
Communication system and method
- Patent number 5,684,451
- Issue date Nov 4, 1997
- Fisher Controls International, Inc.
- Stephen G. Seberger
- G08 - SIGNALLING
Information Patent Grant
Electro-pneumatic converter calibration
- Patent number 5,502,999
- Issue date Apr 2, 1996
- Fisher Controls International, Inc.
- Stephen G. Seberger
- G05 - CONTROLLING REGULATING
Information Patent Grant
Communication system and method
- Patent number 5,451,923
- Issue date Sep 19, 1995
- Fisher Controls International, Inc.
- Stephen G. Seberger
- G08 - SIGNALLING

Patents Applicationslast 30 patents

Information Patent Application
METHODS AND APPARATUS OF TESTING A SOLENOID VALVE OF AN EMERGENCY V...
- Publication number 20180112798
- Publication date Apr 26, 2018
- FISHER CONTROLS INTERNATIONAL LLC
- Kenneth Junk
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
LIQUID DETECTION DEVICE WITH WIRELESS COMMUNICATOR
- Publication number 20180066804
- Publication date Mar 8, 2018
- FISHER CONTROLS INTERNATIONAL LLC
- Bruce F. Grumstrup
- G01 - MEASURING TESTING
Information Patent Application
VALVE POSITIONER WITH OVERPRESSURE PROTECTION CAPABILITIES
- Publication number 20170023954
- Publication date Jan 26, 2017
- FISHER CONTROLS INTERNATIONAL LLC
- Bruce Frederick Grumstrup
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
VALVE POSITIONER WITH OVERPRESSURE PROTECTION CAPABILITIES
- Publication number 20150192931
- Publication date Jul 9, 2015
- FISHER CONTROLS INTERNATIONAL LLC
- Bruce Frederick Grumstrup
- G05 - CONTROLLING REGULATING
Information Patent Application
Methods and Apparatus to Provide a Role-Based User Interface
- Publication number 20150105878
- Publication date Apr 16, 2015
- Fisher-Rosemount Systems, Inc.
- Bryan Michael Jones
- G05 - CONTROLLING REGULATING
Information Patent Application
METHODS AND APPARATUS FOR BYPASSING A POSITIONER IN AN ACTIVE CONTR...
- Publication number 20120216898
- Publication date Aug 30, 2012
- Perry Keith Carter
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information Patent Application
AUTOMATIC VALVE SEATING INTEGRITY TEST
- Publication number 20120139725
- Publication date Jun 7, 2012
- FISHER CONTROLS INTERNATIONAL LLC
- Bruce F. Grumstrup
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Method and Apparatus for Operating Field Devices via a Portable Com...
- Publication number 20100145476
- Publication date Jun 10, 2010
- FISHER CONTROLS INTERNATIONAL LLC
- Kenneth W. Junk
- G05 - CONTROLLING REGULATING
Information Patent Application
Gas blanket management system and method
- Publication number 20040046670
- Publication date Mar 11, 2004
- Paul R. Adams
- G05 - CONTROLLING REGULATING
Information Patent Application
Regulator flow measurement apparatus
- Publication number 20030233203
- Publication date Dec 18, 2003
- Bruce F. Grumstrup
- G05 - CONTROLLING REGULATING
Information Patent Application
Flow measurement module and method
- Publication number 20030135335
- Publication date Jul 17, 2003
- Bruce Frederick Grumstrup
- G05 - CONTROLLING REGULATING

Bruce F. Grumstrup

Person

Patents Grantslast 30 patents

Liquid detection device with wireless communicator

Methods and apparatus of testing a solenoid valve of an emergency v...

Valve positioner with overpressure protection capabilities

Valve positioner with overpressure protection capabilities

Method and apparatus for operating field devices via a portable com...

Methods and apparatus for bypassing a positioner in an active contr...

Automatic valve seating integrity test

Regulator flow measurement apparatus

Flow measurement module and method

Method of and apparatus for deterministically obtaining measurements

Emergency shutdown test system

Method of and apparatus for protecting and upgrading software using...

Method of and apparatus for nonobtrusively obtaining on-line measur...

Device data acquisition

Communication system and method

Electro-pneumatic converter calibration

Communication system and method

Patents Applicationslast 30 patents

METHODS AND APPARATUS OF TESTING A SOLENOID VALVE OF AN EMERGENCY V...

LIQUID DETECTION DEVICE WITH WIRELESS COMMUNICATOR

VALVE POSITIONER WITH OVERPRESSURE PROTECTION CAPABILITIES

VALVE POSITIONER WITH OVERPRESSURE PROTECTION CAPABILITIES

Methods and Apparatus to Provide a Role-Based User Interface

METHODS AND APPARATUS FOR BYPASSING A POSITIONER IN AN ACTIVE CONTR...

AUTOMATIC VALVE SEATING INTEGRITY TEST

Method and Apparatus for Operating Field Devices via a Portable Com...

Gas blanket management system and method

Regulator flow measurement apparatus

Flow measurement module and method