Thomas W. Holmquist-Brown

Person

St. Paul, MN, US

People

Patents Grantslast 30 patents

Information Patent Grant
Respirator fit check sealing devices and methods
- Patent number 11,865,375
- Issue date Jan 9, 2024
- 3M Innovative Properties Company
- William A. Mittelstadt
- A62 - LIFE-SAVING FIRE-FIGHTING
Information Patent Grant
Respirator fit check sealing devices and methods
- Patent number 11,219,787
- Issue date Jan 11, 2022
- 3M Innovative Properties Company
- William A. Mittelstadt
- A62 - LIFE-SAVING FIRE-FIGHTING
Information Patent Grant
Filter systems including patterned optical analyte sensors and opti...
- Patent number 9,440,176
- Issue date Sep 13, 2016
- 3M Innovative Properties Company
- Gary E. Dwyer
- A62 - LIFE-SAVING FIRE-FIGHTING
Information Patent Grant
Patterned chemical sensor having inert occluding layer
- Patent number 8,955,515
- Issue date Feb 17, 2015
- 3M Innovative Properties Company
- Neal A. Rakow
- A62 - LIFE-SAVING FIRE-FIGHTING
Information Patent Grant
Filter systems including patterned optical analyte sensors and opti...
- Patent number 8,858,692
- Issue date Oct 14, 2014
- 3M Innovative Properties Company
- Gary E. Dwyer
- A62 - LIFE-SAVING FIRE-FIGHTING
Information Patent Grant
Respirator harness having collapsible head cradle
- Patent number 8,839,785
- Issue date Sep 23, 2014
- 3M Innovative Properties Company
- David M. Castiglione
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Filter systems including optical analyte sensors and optical readers
- Patent number 8,821,621
- Issue date Sep 2, 2014
- 3M Innovative Properties Company
- Gary E. Dwyer
- A62 - LIFE-SAVING FIRE-FIGHTING
Information Patent Grant
Filter cartridge having cone of visibility for end-of-service-life-...
- Patent number 8,365,723
- Issue date Feb 5, 2013
- 3M Innovative Properties Company
- Richard J. Poirier
- A62 - LIFE-SAVING FIRE-FIGHTING
Information Patent Grant
Filter cartridge having cover for masking service life indicator
- Patent number 8,336,543
- Issue date Dec 25, 2012
- 3M Innovative Properties Company
- Thomas W. Holmquist-Brown
- A62 - LIFE-SAVING FIRE-FIGHTING
Information Patent Grant
Filter cartridge having location-registered view window for end-of-...
- Patent number 8,225,782
- Issue date Jul 24, 2012
- 3M Innovative Properties Company
- Neal A. Rakow
- A62 - LIFE-SAVING FIRE-FIGHTING
Information Patent Grant
Filter housing
- Patent number D613851
- Issue date Apr 13, 2010
- 3M Innovative Properties Company
- John M. Pilgrim
- D24 - Medical and laboratory equipment
Information Patent Grant
Respirator mask body
- Patent number D613850
- Issue date Apr 13, 2010
- 3M Innovative Properties Company
- Thomas W. Holmquist-Brown
- D24 - Medical and laboratory equipment
Information Patent Grant
Strap carriers on a respirator
- Patent number D568986
- Issue date May 13, 2008
- 3M Innovative Properties Company
- Thomas W. Holmquist-Brown
- D24 - Medical and laboratory equipment
Information Patent Grant
Respirator having snap-fit filter cartridge
- Patent number RE39493
- Issue date Feb 27, 2007
- 3M Innovative Properties Company
- Gregory Yuschak
- 128 - Surgery
Information Patent Grant
Respirator and filter cartridge
- Patent number 6,277,178
- Issue date Aug 21, 2001
- 3M Innovative Properties Company
- Thomas W. Holmquist-Brown
- A62 - LIFE-SAVING FIRE-FIGHTING
Information Patent Grant
Respirator having a compressible press fir filter element
- Patent number 6,216,693
- Issue date Apr 17, 2001
- 3M Innovative Properties Company
- Peter O. Rekow
- A62 - LIFE-SAVING FIRE-FIGHTING
Information Patent Grant
Respirator having snap-fit filter cartridge
- Patent number 5,579,761
- Issue date Dec 3, 1996
- Minnesota Mining and Manufacturing Company
- Gregory Yuschak
- A62 - LIFE-SAVING FIRE-FIGHTING

Patents Applicationslast 30 patents

Information Patent Application
RESPIRATOR FIT CHECK SEALING DEVICES AND METHODS
- Publication number 20240091573
- Publication date Mar 21, 2024
- 3M Innovative Properties Company
- William A. Mittelstadt
- A62 - LIFE-SAVING FIRE-FIGHTING
Information Patent Application
RESPIRATOR FIT CHECK SEALING DEVICES AND METHODS
- Publication number 20220088422
- Publication date Mar 24, 2022
- 3M Innovative Properties Company
- William A. Mittelstadt
- A62 - LIFE-SAVING FIRE-FIGHTING
Information Patent Application
Respirator Fit Check Sealing Devices And Methods
- Publication number 20200316414
- Publication date Oct 8, 2020
- 3M Innovative Properties Company
- William A. Mittelstadt
- A62 - LIFE-SAVING FIRE-FIGHTING
Information Patent Application
FILTER SYSTEMS INCLUDING PATTERNED OPTICAL ANALYTE SENSORS AND OPTI...
- Publication number 20140377135
- Publication date Dec 25, 2014
- 3M Innovative Properties Company
- Gary E. Dwyer
- G01 - MEASURING TESTING
Information Patent Application
Filter Systems Including Patterned Optical Analyte Sensors and Opti...
- Publication number 20130186279
- Publication date Jul 25, 2013
- Gary E. Dwyer
- G01 - MEASURING TESTING
Information Patent Application
Filter Systems Including Optical Analyte Sensors and Optical Readers
- Publication number 20130010288
- Publication date Jan 10, 2013
- Gary E. Dwyer
- G01 - MEASURING TESTING
Information Patent Application
RESPIRATOR HARNESS HAVING COLLAPSIBLE HEAD CRADLE
- Publication number 20110220115
- Publication date Sep 15, 2011
- 3M Innovative Properties Company
- David M. Castiglione
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
PATTERNED CHEMICAL SENSOR HAVING INERT OCCLUDING LAYER
- Publication number 20110094514
- Publication date Apr 28, 2011
- 3M Innovative Properties Company
- Neal A. Rakow
- A62 - LIFE-SAVING FIRE-FIGHTING
Information Patent Application
FILTER CARTRIDGE HAVING CONE OF VISIBILITY FOR END-OF-SERVICE-LIFE-...
- Publication number 20100294274
- Publication date Nov 25, 2010
- 3M Innovative Properties Company
- Richard J. Poirier
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
FILTER CARTRIDGE HAVING COVER FOR MASKING SERVICE LIFE INDICATOR
- Publication number 20100294272
- Publication date Nov 25, 2010
- 3M Innovative Properties Company
- Thomas W. Holmquist-Brown
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
FILTER CARTRIDGE HAVING LOCATION-REGISTERED VIEW WINDOW FOR END-OF-...
- Publication number 20100294273
- Publication date Nov 25, 2010
- 3M Innovative Properties Company
- Neal A. Rakow
- A62 - LIFE-SAVING FIRE-FIGHTING
Information Patent Application
Respirator having a compressible press fit filter element
- Publication number 20010013347
- Publication date Aug 16, 2001
- 3M Innovative Properties Company
- Peter O. Rekow
- A62 - LIFE-SAVING FIRE-FIGHTING

Thomas W. Holmquist-Brown

Person

Patents Grantslast 30 patents

Respirator fit check sealing devices and methods

Respirator fit check sealing devices and methods

Filter systems including patterned optical analyte sensors and opti...

Patterned chemical sensor having inert occluding layer

Filter systems including patterned optical analyte sensors and opti...

Respirator harness having collapsible head cradle

Filter systems including optical analyte sensors and optical readers

Filter cartridge having cone of visibility for end-of-service-life-...

Filter cartridge having cover for masking service life indicator

Filter cartridge having location-registered view window for end-of-...

Filter housing

Respirator mask body

Strap carriers on a respirator

Respirator having snap-fit filter cartridge

Respirator and filter cartridge

Respirator having a compressible press fir filter element

Respirator having snap-fit filter cartridge

Patents Applicationslast 30 patents

RESPIRATOR FIT CHECK SEALING DEVICES AND METHODS

RESPIRATOR FIT CHECK SEALING DEVICES AND METHODS

Respirator Fit Check Sealing Devices And Methods

FILTER SYSTEMS INCLUDING PATTERNED OPTICAL ANALYTE SENSORS AND OPTI...

Filter Systems Including Patterned Optical Analyte Sensors and Opti...

Filter Systems Including Optical Analyte Sensors and Optical Readers

RESPIRATOR HARNESS HAVING COLLAPSIBLE HEAD CRADLE

PATTERNED CHEMICAL SENSOR HAVING INERT OCCLUDING LAYER

FILTER CARTRIDGE HAVING CONE OF VISIBILITY FOR END-OF-SERVICE-LIFE-...

FILTER CARTRIDGE HAVING COVER FOR MASKING SERVICE LIFE INDICATOR

FILTER CARTRIDGE HAVING LOCATION-REGISTERED VIEW WINDOW FOR END-OF-...

Respirator having a compressible press fit filter element