US3220409A
(en)
*
|
1961-03-28 |
1965-11-30 |
Johnson & Johnson |
Face mask
|
US3333585A
(en)
*
|
1964-12-14 |
1967-08-01 |
Minnesota Mining & Mfg |
Cold weather face mask
|
USD248497S
(en)
*
|
1976-05-20 |
1978-07-11 |
American Optical Corporation |
Disposable respirator
|
US4616647A
(en)
*
|
1984-08-13 |
1986-10-14 |
Parmelee Industries, Inc. |
Molded fiber disposable face mask having enhanced nose and chin filter-seals
|
US5237986A
(en)
*
|
1984-09-13 |
1993-08-24 |
Minnesota Mining And Manufacturing Company |
Respirator harness assembly
|
US4600002A
(en)
*
|
1984-10-24 |
1986-07-15 |
American Optical Corporation |
Disposable respirator
|
US5307796A
(en)
*
|
1990-12-20 |
1994-05-03 |
Minnesota Mining And Manufacturing Company |
Methods of forming fibrous filtration face masks
|
US6041782A
(en)
*
|
1997-06-24 |
2000-03-28 |
3M Innovative Properties Company |
Respiratory mask having comfortable inner cover web
|
US6923182B2
(en)
*
|
2002-07-18 |
2005-08-02 |
3M Innovative Properties Company |
Crush resistant filtering face mask
|
US20080230066A1
(en)
*
|
2007-03-20 |
2008-09-25 |
Kitaru Innovations Inc. |
Perfume impregnated mask with an image thereon
|
US20080295843A1
(en)
*
|
2007-06-01 |
2008-12-04 |
Haas Marci B |
Self sanitizing face masks and method of manufacture
|
USD657051S1
(en)
*
|
2009-09-22 |
2012-04-03 |
World Wide Welding, Inc. |
Dust mask
|
USD657053S1
(en)
*
|
2009-09-22 |
2012-04-03 |
World Wide Welding, Inc. |
Dust mask
|
US20110247626A1
(en)
*
|
2010-04-13 |
2011-10-13 |
Chin-Fu Chuang |
Mask
|
USD695886S1
(en)
*
|
2011-05-09 |
2013-12-17 |
3M Innovative Properties Company |
Respiratory mask
|
USD698498S1
(en)
*
|
2012-08-08 |
2014-01-28 |
Jsp Limited |
Protective face mask
|
USD746439S1
(en)
*
|
2013-12-30 |
2015-12-29 |
Kimberly-Clark Worldwide, Inc. |
Combination valve and buckle set for disposable respirators
|
USD778431S1
(en)
*
|
2014-10-08 |
2017-02-07 |
Adam Sloan Glickfield |
Mask for noise reduction
|
USD855174S1
(en)
*
|
2017-10-16 |
2019-07-30 |
Honeywell International Inc. |
Single use respirator with textile knitted fabric
|
KR102585442B1
(ko)
*
|
2017-11-13 |
2023-10-06 |
쓰리엠 이노베이티브 프로퍼티즈 캄파니 |
이너 쉘 및 이를 포함하는 마스크
|
USD844253S1
(en)
*
|
2018-03-12 |
2019-03-26 |
Makrite Industries Inc. |
Face mask
|
USD892410S1
(en)
*
|
2018-12-27 |
2020-08-04 |
Alexandru David |
Dust mask
|
US20210316166A1
(en)
*
|
2020-04-12 |
2021-10-14 |
National Cheng Kung University |
Apparatus for identifying leak of face mask and method therefor
|
US20210322798A1
(en)
*
|
2020-04-21 |
2021-10-21 |
Xicore Inc. |
Cartridge for Respiration Device
|