Hans-Joachim Walther

Person

Lubeck, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Breathing mask with flow indicator for the respiration air
- Patent number 5,322,059
- Issue date Jun 21, 1994
- Dragerwerk AG
- Hans-Joachim Walther
- A62 - LIFE-SAVING FIRE-FIGHTING
Information Patent Grant
Respirator with blower support and regeneration of the breathing fi...
- Patent number 5,036,842
- Issue date Aug 6, 1991
- Dragerwerk Aktiengesellschaft
- Carl E. van der Smissen
- A62 - LIFE-SAVING FIRE-FIGHTING
Information Patent Grant
Lung-controlled valve for respirator masks having positive pressure...
- Patent number 4,796,619
- Issue date Jan 10, 1989
- Dragerwerk Aktiengesellschaft
- Hans-Joachim Walther
- A62 - LIFE-SAVING FIRE-FIGHTING
Information Patent Grant
Gas mask having a protective hood
- Patent number 4,771,771
- Issue date Sep 20, 1988
- Dragerwerk AG
- Hans-Joachim Walther
- A62 - LIFE-SAVING FIRE-FIGHTING
Information Patent Grant
Device for affixing a respiratory mask onto a protection helmet
- Patent number 4,734,940
- Issue date Apr 5, 1988
- Dragerwerk Aktiengesellschaft
- Adrien Galet
- A42 - HEADWEAR
Information Patent Grant
Control valve for a breathing mask
- Patent number 4,606,339
- Issue date Aug 19, 1986
- Dragerwerk AG
- Hans-Joachim Walther
- A62 - LIFE-SAVING FIRE-FIGHTING
Information Patent Grant
Control for a protective mask which operates with excess internal p...
- Patent number 4,572,176
- Issue date Feb 25, 1986
- Dragerwerk Aktiengesellschaft
- Hans-Joachim Walther
- A62 - LIFE-SAVING FIRE-FIGHTING
Information Patent Grant
Protective helmet with releasably connected protective breathing mask
- Patent number 4,555,815
- Issue date Dec 3, 1985
- Dragerwerk Aktiengesellschaft
- Hans J. Walther
- A42 - HEADWEAR
Information Patent Grant
Ready use respirator
- Patent number 4,473,072
- Issue date Sep 25, 1984
- Dragerwerk Aktiengesellschaft
- Hans-Joachim Walther
- A62 - LIFE-SAVING FIRE-FIGHTING
Information Patent Grant
Head guard assembly comprising a protective helmet and a protective...
- Patent number 4,136,403
- Issue date Jan 30, 1979
- Dragerwerk Aktiengesellschaft
- Hans J. Walther
- A42 - HEADWEAR

Hans-Joachim Walther

Person

Patents Grantslast 30 patents

Breathing mask with flow indicator for the respiration air

Respirator with blower support and regeneration of the breathing fi...

Lung-controlled valve for respirator masks having positive pressure...

Gas mask having a protective hood

Device for affixing a respiratory mask onto a protection helmet

Control valve for a breathing mask

Control for a protective mask which operates with excess internal p...

Protective helmet with releasably connected protective breathing mask

Ready use respirator

Head guard assembly comprising a protective helmet and a protective...