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Reinfeld, DE
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last 30 patents
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Patent Grant
Suction device with a filter insert in the suction line
Patent number
5,531,802
Issue date
Jul 2, 1996
Dragerwerk Aktiengesellschaft
Georg Schlor
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Respirator with a protective covering of coated fabric
Patent number
5,119,808
Issue date
Jun 9, 1992
Dragerwerk Aktiengesellschaft
Wolfgang Marquardt
B32 - LAYERED PRODUCTS
Information
Patent Grant
Sprayable composition using acetone solvent
Patent number
5,040,530
Issue date
Aug 20, 1991
Dragerwerk Aktiengesellschaft
Christoph Bauer
A62 - LIFE-SAVING FIRE-FIGHTING
Information
Patent Grant
Gas tight packaging with a safety device
Patent number
5,005,700
Issue date
Apr 9, 1991
Dragerwerk Aktiengesellschaft
Holmer Rohling
A62 - LIFE-SAVING FIRE-FIGHTING
Information
Patent Grant
Oxygen supply unit having an oxygen generator
Patent number
4,840,171
Issue date
Jun 20, 1989
Dragerwerk Aktiengesellschaft
Holmer Rohling
B64 - AIRCRAFT AVIATION COSMONAUTICS
Information
Patent Grant
Folded protective hood having an oxygen mask
Patent number
4,836,197
Issue date
Jun 6, 1989
Dragerwerk Aktiengesellschaft
Holmer Rohling
A62 - LIFE-SAVING FIRE-FIGHTING
Information
Patent Grant
Protective hood
Patent number
4,807,614
Issue date
Feb 28, 1989
Dragerwerk Aktiengesellschaft
Carl E. van der Smissen
A62 - LIFE-SAVING FIRE-FIGHTING
Information
Patent Grant
Mixing and proportioning device for flowing media
Patent number
4,699,173
Issue date
Oct 13, 1987
Dragerwerk AG
Holmer Rohling
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Gas mixing device for breath-protecting, diving, medical and labora...
Patent number
4,219,038
Issue date
Aug 26, 1980
Dragerwerk Aktiengesellschaft
Wolfgang Lubitzsch
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE