|
US3154073A
(en)
*
|
1963-03-01 |
1964-10-27 |
Electric Storage Battery Co |
Respirator filter mounting means
|
|
US3974829A
(en)
|
1974-07-08 |
1976-08-17 |
Giles C. Clegg, Jr. |
Means for preventing fogging of optical aids used by the wearer of a surgical mask
|
|
USD250131S
(en)
*
|
1976-10-18 |
1978-10-31 |
Chemetron Corporation |
Breathing mask
|
|
US4616647A
(en)
*
|
1984-08-13 |
1986-10-14 |
Parmelee Industries, Inc. |
Molded fiber disposable face mask having enhanced nose and chin filter-seals
|
|
US4630604A
(en)
*
|
1985-04-09 |
1986-12-23 |
Siebe North, Inc. |
Valve assembly for a replaceable filter respirator
|
|
USD323908S
(en)
*
|
1989-11-09 |
1992-02-11 |
Smith Industries Medical Systems, Inc. |
Face mask
|
|
US5155863A
(en)
|
1991-05-23 |
1992-10-20 |
Roberts Johniece T |
Removable protective cover for breathing mask
|
|
US5431158A
(en)
*
|
1993-04-20 |
1995-07-11 |
Tirotta; Christopher F. |
Endoscopy breathing mask
|
|
US5701892A
(en)
|
1995-12-01 |
1997-12-30 |
Bledstein; Adrien Janis |
Multipurpose face mask that maintains an airspace between the mask and the wearer's face
|
|
US6412487B1
(en)
|
1997-01-31 |
2002-07-02 |
Resmed Limited |
Mask cushion and frame assembly
|
|
US5909732A
(en)
|
1998-05-04 |
1999-06-08 |
The United States Of America As Represented By The Secretary Of The Air Force |
Insert to provide conformal support for the reflective seal of an oxygen mask
|
|
US7287528B2
(en)
*
|
2005-04-13 |
2007-10-30 |
Ric Investments, Llc |
Cushion inside a cushion patient interface
|
|
USD558331S1
(en)
*
|
2006-01-12 |
2007-12-25 |
Resmed Limited |
Cushion for a respiratory mask
|
|
NZ578334A
(en)
|
2007-04-19 |
2011-01-28 |
Resmed Ltd |
Mask frame connected to face cushion via intervening clip
|
|
USD578208S1
(en)
|
2007-07-23 |
2008-10-07 |
3M Innovative Properties Company |
Frame for a full face respirator mask
|
|
CN101801465B
(en)
*
|
2007-09-20 |
2012-07-11 |
3M创新有限公司 |
Filtering face-piece respirator that has expandable mask body
|
|
MX2010002887A
(en)
*
|
2007-09-20 |
2010-03-30 |
3M Innovative Properties Co |
Filtering face-piece respirator having buckles integral to the mask body support structure.
|
|
US20090235934A1
(en)
*
|
2008-03-24 |
2009-09-24 |
3M Innovative Properties Company |
Filtering face-piece respirator having an integrally-joined exhalation valve
|
|
KR101013242B1
(en)
*
|
2009-04-28 |
2011-02-09 |
우제정 |
cover mold for anti-dust mask
|
|
US8640704B2
(en)
*
|
2009-09-18 |
2014-02-04 |
3M Innovative Properties Company |
Flat-fold filtering face-piece respirator having structural weld pattern
|
|
KR101165763B1
(en)
*
|
2011-09-08 |
2012-07-20 |
정정대 |
Dust-proof mask
|
|
USD746438S1
(en)
|
2014-05-22 |
2015-12-29 |
3M Innovative Properties Company |
Respirator filter cover
|
|
USD788373S1
(en)
*
|
2015-09-09 |
2017-05-30 |
Masket, LLC |
Filtering facemask holder
|
|
US10342999B2
(en)
*
|
2015-10-16 |
2019-07-09 |
Yang Song |
Particulate filter face mask having fan breathing assist
|
|
USD811582S1
(en)
|
2016-07-06 |
2018-02-27 |
Sleepnet Corporation |
Face mask
|
|
USD812737S1
(en)
|
2016-07-06 |
2018-03-13 |
Sleepnet Corporation |
Face mask
|
|
CN109922867A
(en)
|
2016-07-06 |
2019-06-21 |
思眠安公司 |
Mask with detachable/replaceable cartridge
|
|
US10561181B2
(en)
*
|
2016-08-02 |
2020-02-18 |
Dangerboo, LLC |
Face mask having a flexible skeleton and a flexible skeleton for a face mask
|
|
AU201712054S
(en)
|
2017-04-06 |
2017-05-02 |
Healthy Breath Ltd |
A Mask
|
|
GB2569807B
(en)
|
2017-12-22 |
2022-04-13 |
Respro Uk Ltd |
Face mask filter holder
|
|
WO2020243838A1
(en)
*
|
2019-06-07 |
2020-12-10 |
Whitby Peter Lionel |
Apparatus for connecting a face mask to an air hose
|
|
USD945078S1
(en)
*
|
2020-04-03 |
2022-03-01 |
Savage Brands, Inc. |
Face mask
|
|
US20210307413A1
(en)
*
|
2020-04-04 |
2021-10-07 |
Joseph Frank Scalisi |
Protective face mask
|
|
USD928306S1
(en)
*
|
2020-04-15 |
2021-08-17 |
Soclean, Inc. |
Mask adapter
|
|
US11324974B2
(en)
*
|
2020-04-17 |
2022-05-10 |
The University Of North Carolina At Chapel Hill |
Face mask
|
|
USD956953S1
(en)
*
|
2020-05-07 |
2022-07-05 |
beyondSMART Furniture Co., Ltd. |
Filter mask
|
|
USD954936S1
(en)
*
|
2020-05-29 |
2022-06-14 |
Metal Heart Group of Companies |
Mask
|
|
USD943735S1
(en)
*
|
2020-06-14 |
2022-02-15 |
Dongguan Rentong Silicon Plastic Products Co., Ltd. |
Respiratory mask
|
|
USD930149S1
(en)
*
|
2020-06-17 |
2021-09-07 |
Mingzong Huang |
Mask bracket
|
|
USD958966S1
(en)
*
|
2020-07-21 |
2022-07-26 |
Desprez, Llc |
Face mask
|
|
USD961761S1
(en)
*
|
2020-09-24 |
2022-08-23 |
University Of Tennessee Research Foundation |
Nose and mouth face mask
|
|
USD933309S1
(en)
*
|
2020-12-04 |
2021-10-12 |
Yong Zhang |
3D mask bracket
|