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1989-03-30 |
1990-05-01 |
American Optical Corporation |
Filter element
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USD382341S
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*
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1996-03-27 |
1997-08-12 |
Mine Safety Appliances Company |
Respirator face mask
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AU133090S
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1997-02-25 |
1998-03-06 |
Resmed Ltd |
A nasal mask shell
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USD421801S
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1997-10-03 |
2000-03-21 |
3M Innovative Properties Company |
Carriage for drop-down mask assembly
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USD421299S
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1997-10-03 |
2000-02-29 |
3M Innovative Properties Company |
Carriage for drop-down mask assembly
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USD440301S1
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1999-02-22 |
2001-04-10 |
Cabot Safety Intermediate Corporation |
Respirator
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USD467656S1
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2001-06-25 |
2002-12-24 |
3M Innovative Properties Company |
Respirator facemask
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USD477074S1
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2002-05-15 |
2003-07-08 |
Hans Rudolph, Inc |
Mask
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2002-09-23 |
2005-04-05 |
3M Innovative Properties Company |
Filter element that has a thermo-formed housing around filter material
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KR100514662B1
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2003-05-19 |
2005-09-16 |
이시원 |
Face mask
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NZ615209A
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2007-03-02 |
2015-07-31 |
Resmed Ltd |
Respiratory mask
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2007-08-31 |
2010-09-02 |
3M Innovative Properties Company |
Unitary respirator with molded thermoset elastomeric elements
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USD645956S1
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2009-06-15 |
2011-09-27 |
Moldex-Metric, Inc. |
Half mask filter respirator
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USD639932S1
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2010-01-08 |
2011-06-14 |
Resmed Limited |
Frame for respiratory mask
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2013-02-01 |
2016-12-06 |
3M Innovative Properties Company |
Sleeve-fit respirator cartridge
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2013-02-01 |
2016-02-16 |
3M Innovative Properties Company |
Personal protective equipment strap retaining devices
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2013-02-01 |
2016-02-02 |
3M Innovative Properties Company |
Personal protective equipment strap retaining devices
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USD764656S1
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2014-06-26 |
2016-08-23 |
Moldex-Metric, Inc. |
Compact mask with changeable filters
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2014-09-03 |
2017-12-05 |
Undersea Sensor Systems, Inc. |
Air purification respirator voice amplifier
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AU2016341973B2
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2015-10-22 |
2019-03-14 |
Scott Technologies, Inc. |
Respirator mask with eyewear interface
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EP3365075B1
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2015-10-22 |
2024-12-11 |
Scott Technologies, Inc. |
Respirator mask with voice transmittal feature
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USD849239S1
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2017-12-08 |
2019-05-21 |
Louis M. Gerson Co., Ind. |
Respirator mask
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CN115335124A
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2020-04-08 |
2022-11-11 |
空气工业有限责任公司 |
Air filter mask that emits UV light
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2020-04-16 |
2023-05-25 |
Med Interventions And Beyond Pvt. Ltd. |
Multi-mask equipment
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WO2021247599A1
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2020-06-01 |
2021-12-09 |
University Of Southern California |
Negative pressure procedure mask
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CA200196S
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2020-12-22 |
2022-06-13 |
Dentec Safety Specialists Inc |
Respirator
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USD968031S1
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2021-03-05 |
2022-10-25 |
VPrevent GmbH |
Protective face mask
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USD987069S1
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2021-07-14 |
2023-05-23 |
Razer (Asia-Pacific) Pte. Ltd. |
Face mask
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