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Willem L. van der Valk

New York, NY: #7,895 of 20,192 inventorsTop 40%

New York: #48,759 of 115,490 inventorsTop 45%

Overall (All Time): #2,287,561 of 4,157,543Top 60%

2 Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
D359352	Condom ring	—	1995-06-13
5163449	Device for a male condom, and a condom to be used with this device	—	1992-11-17