-
Voice masking headphone
-
Patent number D1029788
-
Issue date Jun 4, 2024
-
3M Innovative Properties Company
-
Douglas W. Fletcher
-
D14 - Recording, communication, or information retrieval equipment
-
Air filter condition sensing
-
Patent number 11,617,980
-
Issue date Apr 4, 2023
-
3M Innovative Properties Company
-
Jonathan B. Arthur
-
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
-
Air filter condition sensing
-
Patent number 11,607,635
-
Issue date Mar 21, 2023
-
3M Innovative Properties Company
-
Jonathan B. Arthur
-
H04 - ELECTRIC COMMUNICATION TECHNIQUE
-
Hearing protector
-
Patent number D980539
-
Issue date Mar 7, 2023
-
3M Innovative Properties Company
-
Alonso M. Hernandez
-
D29 - Equipment for safety, protection, and rescue
-
Hearing protector
-
Patent number D980545
-
Issue date Mar 7, 2023
-
3M Innovative Properties Company
-
Alonso M. Hernandez
-
D29 - Equipment for safety, protection, and rescue
-
Hearing protector
-
Patent number D980541
-
Issue date Mar 7, 2023
-
3M Innovative Properties Company
-
Alonso M. Hernandez
-
D29 - Equipment for safety, protection, and rescue
-
Hearing protector
-
Patent number D980542
-
Issue date Mar 7, 2023
-
Alonso M. Hernandez
-
D29 - Equipment for safety, protection, and rescue
-
Hearing protector
-
Patent number D980543
-
Issue date Mar 7, 2023
-
3M Innovative Properties Company
-
Alonso M. Hernandez
-
D29 - Equipment for safety, protection, and rescue
-
Hearing protector
-
Patent number D980544
-
Issue date Mar 7, 2023
-
3M Innovative Properties Company
-
Alonso M. Hernandez
-
D29 - Equipment for safety, protection, and rescue
-
Hearing protector
-
Patent number D980540
-
Issue date Mar 7, 2023
-
3M Innovative Properties Company
-
Alonso M. Hernandez
-
D29 - Equipment for safety, protection, and rescue
-
Hearing protector
-
Patent number D978443
-
Issue date Feb 14, 2023
-
3M Innovative Properties Company
-
Gregory G. Jager
-
D29 - Equipment for safety, protection, and rescue
-
-
Air filter condition sensing
-
Patent number 11,202,982
-
Issue date Dec 21, 2021
-
3M Innovative Properties Company
-
Jonathan B. Arthur
-
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
-
-
Air filter condition sensing
-
Patent number 10,646,809
-
Issue date May 12, 2020
-
3M Innovative Properties Company
-
Jonathan B. Arthur
-
H04 - ELECTRIC COMMUNICATION TECHNIQUE
-
Air filter condition sensing
-
Patent number 10,363,509
-
Issue date Jul 30, 2019
-
3M Innovative Properties Company
-
Jonathan B. Arthur
-
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
-
-
Hearing protector headband
-
Patent number D830642
-
Issue date Oct 9, 2018
-
3M Innovative Properties Company
-
Douglas D. Fletcher
-
D29 - Equipment for safety, protection, and rescue
-
Hearing protector
-
Patent number D807584
-
Issue date Jan 9, 2018
-
3M Innovative Properties Company
-
Douglas D. Fletcher
-
D29 - Equipment for safety, protection, and rescue
-
Hearing protector headband
-
Patent number D807585
-
Issue date Jan 9, 2018
-
3M Innovative Properties Company
-
Douglas D. Fletcher
-
D29 - Equipment for safety, protection, and rescue
-
Hearing protector headband
-
Patent number D805257
-
Issue date Dec 12, 2017
-
3M Innovative Properties Company
-
Edvard B. E. Maansson
-
D29 - Equipment for safety, protection, and rescue
-
Battery pack
-
Patent number D795801
-
Issue date Aug 29, 2017
-
3M Innovative Properties Company
-
Douglas D. Fletcher
-
D13 - Equipment for production, distribution, or transformation of energy
-
-
Hearing protector
-
Patent number D766520
-
Issue date Sep 13, 2016
-
3M Innovative Properties Company
-
Douglas D. Fletcher
-
D29 - Equipment for safety, protection, and rescue
-
Hearing protector
-
Patent number D764717
-
Issue date Aug 23, 2016
-
3M Innovative Properties Company
-
Douglas D. Fletcher
-
D29 - Equipment for safety, protection, and rescue
-
Hearing protector headband
-
Patent number D763518
-
Issue date Aug 9, 2016
-
3M Innovative Properties Company
-
Douglas D. Fletcher
-
D29 - Equipment for safety, protection, and rescue
-
Hearing protector
-
Patent number D752816
-
Issue date Mar 29, 2016
-
3M Innovative Properties Company
-
Douglas D. Fletcher
-
D29 - Equipment for safety, protection, and rescue