Bjorn R. Kristoffersen

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Kirkland, WA, US

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Patents Grantslast 30 patents

Information Patent Grant
Nonrecirculating vacuum flush toilet system utilizing fresh water
- Patent number 4,521,925
- Issue date Jun 11, 1985
- The Boeing Company
- Tyen C. Chen
- B64 - AIRCRAFT AVIATION COSMONAUTICS
Information Patent Grant
Pressurized drain for toilet waste tank
- Patent number 4,332,041
- Issue date Jun 1, 1982
- The Boeing Company
- Bjorn R. Kristoffersen
- B64 - AIRCRAFT AVIATION COSMONAUTICS
Information Patent Grant
Vacuum toilet system
- Patent number 4,063,315
- Issue date Dec 20, 1977
- The Boeing Company
- Raymond Jerome Carolan
- B64 - AIRCRAFT AVIATION COSMONAUTICS
Information Patent Grant
Sitting-squatting water closet
- Patent number 4,012,797
- Issue date Mar 22, 1977
- The Boeing Company
- Bjorn R. Kristoffersen
- E03 - WATER SUPPLY SEWERAGE
Information Patent Grant
Vacuum toilet system
- Patent number 3,995,328
- Issue date Dec 7, 1976
- The Boeing Company
- Raymond J. Carolan
- B64 - AIRCRAFT AVIATION COSMONAUTICS