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John Kleyn

UNUnknown: 1 patents #29,356 of 83,584Top 40%

Seattle, WA: #14,120 of 21,776 inventorsTop 65%

Washington: #48,111 of 76,902 inventorsTop 65%

Overall (All Time): #4,100,241 of 4,157,543Top 100%

1 Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4299853	Biological preservation of beer	—	1981-11-10