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Donald J. Kalivoda

AE Autoclave Engineers: 1 patents #9 of 18Top 50%
📍 Erie, PA: #632 of 1,097 inventorsTop 60%
🗺 Pennsylvania: #43,221 of 74,527 inventorsTop 60%
Overall (All Time): #3,961,096 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4778150 Non-rotating stem valve Robert B. Pratt, Stephen G. Ratkowski 1988-10-18