CA82141A
(en)
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1903-03-04 |
1903-07-28 |
George Wells |
Electric chromatropes
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CA106801A
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1907-03-08 |
1907-08-06 |
Howes Crowell Wallace |
Station indicator
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1935-07-06 |
1936-12-01 |
Schwartz Nathan |
Filtering device or separator for filter type respirators or the like
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(en)
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1935-08-20 |
1936-09-29 |
Schwartz Nathan |
Separator for filter type respirators
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(en)
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1938-07-30 |
1941-03-18 |
Hygeia Filtering Corp |
Filter unit for respirators
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US2326650A
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1941-04-18 |
1943-08-10 |
Standard Products Co |
Gas mask facepiece
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1943-08-03 |
1948-02-10 |
Lehmann Werner |
Spray mask
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1950-02-14 |
1953-06-02 |
American Optical Corp |
Exhalation valve
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*
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1952-04-08 |
1956-03-20 |
Willson Products Inc |
Respirator with speaking diaphragm
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1954-07-13 |
1957-04-02 |
Harris D Boone |
Filter and gas mask canister employing same
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1955-01-14 |
1959-02-24 |
Electric Storage Battery Co |
Respirator
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SE338510B
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1970-09-08 |
1971-09-06 |
Svenska Cellulosa Ab |
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SE7601232L
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1976-02-05 |
1977-08-06 |
Reboprodukter Goran Segersten |
Ansiktsmask med utbytbart filter
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DE3022115C2
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1980-06-12 |
1985-10-10 |
Bayerische Motoren Werke AG, 8000 München |
Sicherungs- und Verteilerkasten für Kraftfahrzeuge
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JPS5825175A
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1981-08-07 |
1983-02-15 |
揚 文羊 |
防煙防毒マスク
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1982-09-29 |
1984-07-19 |
Drägerwerk AG, 2400 Lübeck |
Fluchtfiltergerät mit einem Atemfilter in einer Halbmaske
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USD286213S
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1983-05-11 |
1986-10-14 |
Maryyanek Richard D |
Dual filter respirator
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1985-09-09 |
1988-04-12 |
Robin Parker |
Gas mask with voice communication device
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USD317063S
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1986-12-22 |
1991-05-21 |
Johnson Larry R |
Mask for paint ball tag games
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1987-02-24 |
1992-02-11 |
Filcon Corporation |
Respiratory protective device
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1987-10-06 |
1990-09-12 |
Pirelli |
Dispositivo per consentire la costituzhione del filtro di una maschera antigas in atmosfera inquinata,senza pericolo di contaminazione
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1987-11-16 |
1991-11-05 |
Minnesota Mining And Manufacturing Company |
Respiratory mask having a soft, compliant facepiece and a thin, rigid insert and method of making
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CA1311423C
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1988-02-10 |
1992-12-15 |
Ronald E. Davis |
Moulded speech transmitter
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JPH01268568A
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1988-04-19 |
1989-10-26 |
Danzaburou Takada |
加湿マスク
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1988-05-17 |
1989-12-12 |
Minnesota Mining And Manufacturing Company |
Filter element
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1989-03-30 |
1990-05-01 |
American Optical Corporation |
Filter element
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1990-06-25 |
1991-10-24 |
Draegerwerk Ag, 2400 Luebeck, De |
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1991-03-22 |
1993-06-15 |
Gairns & Brother Inc. |
Facepiece
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1991-05-02 |
1993-09-21 |
Air-Ace Oy |
Respirator
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USD340317S
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1991-06-06 |
1993-10-12 |
Harry Cole |
Respiratory protection mask
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1993-07-28 |
1997-07-15 |
Donaldson Company, Inc. |
Respirator cartridge with sealing fit test structure and method of use
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1994-03-23 |
1997-03-18 |
Filtration Systems, Inc. |
Hub ring and supporting plate for a filter and methods for manufacturing these members
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1994-10-24 |
1997-09-16 |
Minnesota Mining And Manufacturing Company |
Exposure indicator with continuous alarm signal indicating multiple conditions
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1994-12-06 |
1995-12-14 |
Draegerwerk Ag |
Atemschutzmaske mit Atemfilter
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1995-01-20 |
2001-04-17 |
3M Innovative Properties Company |
Respirator having a compressible press fir filter element
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1995-01-20 |
1996-12-03 |
Minnesota Mining And Manufacturing Company |
Respirator having snap-fit filter cartridge
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1995-09-21 |
1998-02-12 |
Auergesellschaft Gmbh |
Atemschutzmaske
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1999-10-14 |
2001-10-09 |
Moldex-Metric, Inc. |
Respirator mask with snap in filter cartridge
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2000-02-25 |
2014-12-30 |
Resmed R&D Germany Gmbh |
Dispositivo de labio de sellado para una mascarilla de respiración y procedimiento y útiles de moldeo para la fabricación de la misma
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2000-04-03 |
2001-04-10 |
Michael Wolfe |
Face mask
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2000-06-28 |
2002-01-03 |
Vase Technology |
Filter cartridge platform and filter cartridge for use on the platform
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2000-07-26 |
2003-04-22 |
James Neil Duxbury |
Personal respirator
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2000-08-03 |
2003-06-10 |
3M Innovative Properties Company |
Apparatus and method for breathing apparatus component coupling
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2000-08-17 |
2002-02-21 |
Vase Technology |
Bi/multi-directional filter cartridge and filter platform for mounting the cartridge thereon
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2000-08-28 |
2003-07-01 |
Eldridge Taylor |
Respirator mask for filtering breathed air
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2000-11-30 |
2002-11-26 |
Reckitt Benckiser (Australia) Pty Limited |
Vented electrical device for dispensing volatile substances
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2001-06-25 |
2010-12-14 |
3M Innovative Properties Company |
Respirator valve
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2002-03-27 |
2003-09-25 |
Draeger Safety Ag & Co Kgaa |
Anschlussbauteil für ein Atemschutzprodukt
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2002-04-26 |
2003-11-06 |
Avon Protection Systems, Inc. |
Gas mask filter canister
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2002-05-29 |
2007-05-01 |
Brookdale International Systems, Inc. |
Respirator hood assembly
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2003-02-12 |
2004-08-26 |
Fisher & Paykel Healthcare Limited |
Patient interface
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2003-11-07 |
2006-04-04 |
3M Innovative Properties Company |
Face mask carriage
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2003-12-11 |
2007-09-25 |
Tvi Corporation |
Pneumatic sealing system for protection masks
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2004-11-30 |
2006-08-01 |
Robert Egger |
Motorcycle helmet
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2005-03-03 |
2008-09-02 |
3M Innovative Properties Company |
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2008-07-29 |
Marlon Brady |
Water respirator filter
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2005-09-13 |
2006-09-26 |
Lester Broersma |
Quick change extension contoured mask frame
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2006-07-19 |
2007-05-27 |
Открытое Акционерное Общество "ОКБ "Октава" |
Шлемофон
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2006-09-20 |
2007-11-20 |
Chun-Nan Chen |
Mask
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2006-09-22 |
2007-11-06 |
노영도 |
방진 및 방독 마스크
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2008-03-11 |
Jtsports, Llc |
Protection mask
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2007-01-03 |
2008-07-10 |
Louis M. Gerson Co., Inc. |
Cartridge respirator with integral filter connector
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2007-03-29 |
2008-06-03 |
Broersma Lester V |
Facemask insert with inward extending canines
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2007-03-29 |
2008-06-03 |
Broersma Lester V |
Face mask with extending toothlike blocks
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2007-07-23 |
2008-05-20 |
3M Innovative Properties Company |
Exhale valve cover
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2007-08-31 |
2014-09-23 |
3M Innovative Properties Company |
Respirator attachment component with molded thermoset elastomeric seal
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2007-11-20 |
2009-02-03 |
Chun-Nan Chen |
Mask
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USD602154S1
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2008-01-24 |
2009-10-13 |
Shigematsu Works Co., Ltd. |
Whole face covering mask
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JP5848702B2
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2009-07-17 |
2016-01-27 |
パフテック テクノロジーズ ピーティーワイ リミテッド |
レスピレータ
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EP2588203B1
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2010-07-01 |
2018-05-09 |
MSA Technology, LLC |
Breathing apparatus
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2010-07-29 |
2014-06-24 |
Jsp Limited |
Headgear-mountable respirator
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2010-12-01 |
2013-05-28 |
Resmed Limited |
Cushion for respiratory mask
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2011-04-15 |
2013-03-19 |
3M Innovative Properties Company |
Filter cartridge intake profile
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2011-05-03 |
2020-08-12 |
Intersurgical Ag |
Respiratory mask
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