Bertil Werjefelt

Person

Kailua, HI, US

People

Patents Grantslast 30 patents

Information Patent Grant
Emergency vision apparatus
- Patent number 6,460,804
- Issue date Oct 8, 2002
- Bertil R. L. Werjefelt
- B64 - AIRCRAFT AVIATION COSMONAUTICS
Information Patent Grant
Emergency vision device
- Patent number 6,082,673
- Issue date Jul 4, 2000
- Bertil R. L. Werjefelt
- B64 - AIRCRAFT AVIATION COSMONAUTICS
Information Patent Grant
Emergency vision device
- Patent number 5,947,415
- Issue date Sep 7, 1999
- Bertil R. L. Werjefelt
- B64 - AIRCRAFT AVIATION COSMONAUTICS
Information Patent Grant
Pilot visual assurance apparatus for an aircraft cockpit
- Patent number 5,318,250
- Issue date Jun 7, 1994
- Bertil Werjefelt
- B64 - AIRCRAFT AVIATION COSMONAUTICS
Information Patent Grant
Emergency visual assurance apparatus for an aircraft cockpit
- Patent number 5,202,796
- Issue date Apr 13, 1993
- Bertil Werjefelt
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Decompression and toxic fume protection apparatus
- Patent number 4,998,529
- Issue date Mar 12, 1991
- Xenex Corporation
- Bertil Werjefelt
- A62 - LIFE-SAVING FIRE-FIGHTING
Information Patent Grant
Operator station emergency visual assurance method and apparatus
- Patent number 4,832,287
- Issue date May 23, 1989
- Bertil Werjefelt
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Toxic fume protective hood and method of construction
- Patent number 4,683,880
- Issue date Aug 4, 1987
- E. I. Du Pont de Nemours and Company
- Bertil Werjefelt
- B64 - AIRCRAFT AVIATION COSMONAUTICS
Information Patent Grant
Protective hood with CO.sub.2 absorbent
- Patent number 4,627,431
- Issue date Dec 9, 1986
- E. I. Du Pont de Nemours and Company
- Bertil Werjefelt
- A62 - LIFE-SAVING FIRE-FIGHTING
Information Patent Grant
Aircraft cabin ventilation system
- Patent number 4,461,155
- Issue date Jul 24, 1984
- Bertil Werjefelt
- B64 - AIRCRAFT AVIATION COSMONAUTICS
Information Patent Grant
Life support system and method of providing fresh air to enclosed a...
- Patent number 4,440,164
- Issue date Apr 3, 1984
- Bertil Werjefelt
- B64 - AIRCRAFT AVIATION COSMONAUTICS
Information Patent Grant
Environmental control system and method
- Patent number 4,437,318
- Issue date Mar 20, 1984
- Bertil R. L. Werjefelt
- B64 - AIRCRAFT AVIATION COSMONAUTICS

Patents Applicationslast 30 patents

Information Patent Application
Emergency vision apparatus
- Publication number 20010045493
- Publication date Nov 29, 2001
- Bertil R.L. Werjefelt
- G02 - OPTICS

Bertil Werjefelt

Person

Patents Grantslast 30 patents

Emergency vision apparatus

Emergency vision device

Emergency vision device

Pilot visual assurance apparatus for an aircraft cockpit

Emergency visual assurance apparatus for an aircraft cockpit

Decompression and toxic fume protection apparatus

Operator station emergency visual assurance method and apparatus

Toxic fume protective hood and method of construction

Protective hood with CO.sub.2 absorbent

Aircraft cabin ventilation system

Life support system and method of providing fresh air to enclosed a...

Environmental control system and method

Patents Applicationslast 30 patents

Emergency vision apparatus