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John K. Volkert

Northfield, IL: #2 of 6 inventorsTop 35%

Illinois: #1,486 of 5,836 inventorsTop 30%

Overall (2002): #183,677 of 266,432Top 70%

1 Patents 2002

Issued Patents 2002

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
6336631	Two-sided puzzle	—	2002-01-08