Michael J. Cowell

Person

Woodbury, MN, US

People

Patents Grantslast 30 patents

Information Patent Grant
Respirator negative pressure fit check devices and methods
- Patent number 12,128,259
- Issue date Oct 29, 2024
- 3M Innovative Properties Company
- William A. Mittelstadt
- A62 - LIFE-SAVING FIRE-FIGHTING
Information Patent Grant
Headwear suspension attachment element
- Patent number 11,992,078
- Issue date May 28, 2024
- 3M Innovative Properties Company
- David M. Castiglione
- A42 - HEADWEAR
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
Respirator negative pressure fit check devices and methods
- Patent number 11,052,268
- Issue date Jul 6, 2021
- 3M Innovative Properties Company
- William A. Mittelstadt
- A62 - LIFE-SAVING FIRE-FIGHTING
Information Patent Grant
Personal protective device strap connecting buckle assembly
- Patent number 10,765,176
- Issue date Sep 8, 2020
- 3M Innovative Properties Company
- David M. Castiglione
- A44 - HABERDASHERY JEWELLERY
Information Patent Grant
Sleeve-fit respirator cartridge
- Patent number 10,391,338
- Issue date Aug 27, 2019
- 3M Innovative Properties Company
- David M. Blomberg
- A62 - LIFE-SAVING FIRE-FIGHTING
Information Patent Grant
Respirator negative pressure fit check devices and methods
- Patent number 9,950,202
- Issue date Apr 24, 2018
- 3M Innovative Properties Company
- William A. Mittelstadt
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Respirator mask
- Patent number D795416
- Issue date Aug 22, 2017
- 3M Innovative Properties Company
- David M. Blomberg
- D24 - Medical and laboratory equipment
Information Patent Grant
Respiratory mask having a clean air inlet chamber
- Patent number 9,517,367
- Issue date Dec 13, 2016
- 3M Innovative Properties Company
- Gary E. Dwyer
- A62 - LIFE-SAVING FIRE-FIGHTING
Information Patent Grant
Sleeve-fit respirator cartridge
- Patent number 9,510,626
- Issue date Dec 6, 2016
- 3M Innovative Properties Company
- David M. Blomberg
- A41 - WEARING APPAREL
Information Patent Grant
Respirator mask body
- Patent number D747795
- Issue date Jan 19, 2016
- 3M Innovative Properties Company
- David M. Blomberg
- D24 - Medical and laboratory equipment
Information Patent Grant
Respiratory protection device harness assembly
- Patent number 9,149,669
- Issue date Oct 6, 2015
- 3M Innovative Properties Company
- Michael J. Cowell
- A41 - WEARING APPAREL

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 NEGATIVE PRESSURE FIT CHECK DEVICES AND METHODS
- Publication number 20210290992
- Publication date Sep 23, 2021
- 3M Innovative Properties Company
- William A. Mittelstadt
- A62 - LIFE-SAVING FIRE-FIGHTING
Information Patent Application
Headwear Suspension Attachment Element
- Publication number 20200345097
- Publication date Nov 5, 2020
- 3M INNOVATIVE PROPERTIES COMPANY
- David M. Castiglione
- A42 - HEADWEAR
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
Sleeve-Fit Respirator Cartridge
- Publication number 20170072232
- Publication date Mar 16, 2017
- 3M Innovative Properties Company
- David A. Blomberg
- A41 - WEARING APPAREL
Information Patent Application
Personal Protective Device Strap Connecting Buckle Assembly
- Publication number 20170065036
- Publication date Mar 9, 2017
- 3M Innovative Properties Company
- David M. Castiglione
- A41 - WEARING APPAREL
Information Patent Application
RESPIRATOR NEGATIVE PRESSURE FIT CHECK DEVICES AND METHODS
- Publication number 20140251327
- Publication date Sep 11, 2014
- 3M Innovative Properties Company
- William A. Mittelstadt
- A62 - LIFE-SAVING FIRE-FIGHTING
Information Patent Application
RESPIRATORY PROTECTION DEVICE HARNESS ASSEMBLY
- Publication number 20140216463
- Publication date Aug 7, 2014
- 3M Innovative Properties Company
- Michael J. Cowell
- A41 - WEARING APPAREL
Information Patent Application
RESPIRATORY MASK HAVING A CLEAN AIR INLET CHAMBER
- Publication number 20140216473
- Publication date Aug 7, 2014
- 3M Innovative Properties Company
- Gary E. Dwyer
- A62 - LIFE-SAVING FIRE-FIGHTING
Information Patent Application
RESPIRATOR NEGATIVE PRESSURE FIT CHECK DEVICES AND METHODS
- Publication number 20140216474
- Publication date Aug 7, 2014
- 3M Innovative Properties Company
- William A. Mittelstadt
- A62 - LIFE-SAVING FIRE-FIGHTING
Information Patent Application
SLEEVE-FIT RESPIRATOR CARTRIDGE
- Publication number 20140216475
- Publication date Aug 7, 2014
- 3M Innovative Properties Company
- David M. Blomberg
- A41 - WEARING APPAREL

Michael J. Cowell

Person

Patents Grantslast 30 patents

Respirator negative pressure fit check devices and methods

Headwear suspension attachment element

Respirator fit check sealing devices and methods

Respirator fit check sealing devices and methods

Respirator negative pressure fit check devices and methods

Personal protective device strap connecting buckle assembly

Sleeve-fit respirator cartridge

Respirator negative pressure fit check devices and methods

Respirator mask

Respiratory mask having a clean air inlet chamber

Sleeve-fit respirator cartridge

Respirator mask body

Respiratory protection device harness assembly

Patents Applicationslast 30 patents

RESPIRATOR FIT CHECK SEALING DEVICES AND METHODS

RESPIRATOR FIT CHECK SEALING DEVICES AND METHODS

RESPIRATOR NEGATIVE PRESSURE FIT CHECK DEVICES AND METHODS

Headwear Suspension Attachment Element

Respirator Fit Check Sealing Devices And Methods

Sleeve-Fit Respirator Cartridge

Personal Protective Device Strap Connecting Buckle Assembly

RESPIRATOR NEGATIVE PRESSURE FIT CHECK DEVICES AND METHODS

RESPIRATORY PROTECTION DEVICE HARNESS ASSEMBLY

RESPIRATORY MASK HAVING A CLEAN AIR INLET CHAMBER

RESPIRATOR NEGATIVE PRESSURE FIT CHECK DEVICES AND METHODS

SLEEVE-FIT RESPIRATOR CARTRIDGE