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Robert B. Pratt — 1 Patent

AEAutoclave Engineers: 1 patents #9 of 18Top 50%

Erie, PA: #632 of 1,097 inventorsTop 60%

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Overall (All Time): #3,961,095 of 4,157,543Top 100%

1 Patents All Time

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Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4778150	Non-rotating stem valve	Stephen G. Ratkowski, Donald J. Kalivoda	1988-10-18