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Robert C. Frank

Crestwood, IL: #1 of 4 inventorsTop 25%
Illinois: #1,021 of 4,484 inventorsTop 25%
Overall (1994): #75,936 of 165,921Top 50%
1 Patents 1994

Issued Patents 1994

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5363927 Apparatus and method for hydraulic drilling — 1994-11-15

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Robert G. Franz1
Robert L. Franz, Jr.1
Rocky L. Franks1
Robert E. Frankel1
Robert Franke1
Roland C. Francois1
Robert N. Francois1
Ron Francis1
Robert Francis1