JD

James M. Downing

Overall (All Time): #2,292,874 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5294132 Semi-cartridge seal Henry S. Duffee 1994-03-15
5035436 Housing seal chamber body Robert E. Rockwood, Henry S. Duffee 1991-07-30