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Benjamin H. Cooper
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Coronation, GB
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Patents Grants
last 30 patents
Information
Patent Grant
Powered exhaust apparatus for a personal protection respiratory device
Patent number
12,138,491
Issue date
Nov 12, 2024
3M Innovative Properties Company
Desmon T. Curran
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Powered apparatus for a personal protection respiratory device
Patent number
11,554,233
Issue date
Jan 17, 2023
3M Innovative Properties Company
John A. Duff
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Exhaust valve shroud for a personal protection respiratory device
Patent number
11,052,208
Issue date
Jul 6, 2021
3M Innovative Properties Company
Desmond T. Curran
A62 - LIFE-SAVING FIRE-FIGHTING
Patents Applications
last 30 patents
Information
Patent Application
POWERED EXHAUST APPARATUS FOR A PERSONAL PROTECTION RESPIRATORY DEVICE
Publication number
20220370837
Publication date
Nov 24, 2022
3M Innovative Properties Company
Desmond T. Curran
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
POWERED EXHAUST APPARATUS FOR A PERSONAL PROTECTION RESPIRATORY DEVICE
Publication number
20220168597
Publication date
Jun 2, 2022
3M Innovative Properties Company
Desmon T. Curran
A62 - LIFE-SAVING FIRE-FIGHTING
Information
Patent Application
Powered Apparatus for a Personal Protection Respiratory Device
Publication number
20200038614
Publication date
Feb 6, 2020
3M Innovative Properties Company
John A. Duff
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
Exhaust Valve Shroud For A Personal Protection Respiratory Device
Publication number
20190151591
Publication date
May 23, 2019
3M Innovative Properties Company
Desmond T. Curran
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
Powered Exhaust Apparatus For A Personal Protection Respiratory Device
Publication number
20180185677
Publication date
Jul 5, 2018
3M Innovative Properties Company
Desmon T. Curran
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
Powered Exhaust Apparatus For A Personal Protection Respiratory Device
Publication number
20150202473
Publication date
Jul 23, 2015
3M Innovative Properties Company
Desmond T. Curran
A62 - LIFE-SAVING FIRE-FIGHTING