JK

Julian D. Keithahn

HY Hydril: 1 patents #2 of 8Top 25%
📍 Houston, TX: #107 of 558 inventorsTop 20%
🗺 Texas: #432 of 2,272 inventorsTop 20%
Overall (1982): #50,629 of 81,411Top 65%
1
Patents 1982

Issued Patents 1982

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4342330 Ball type valve having improved redundant sealing system Raymond E. Wieveg 1982-08-03