JT

James R. Tietema

CO Conoco: 1 patents #310 of 638Top 50%
Overall (All Time): #3,942,038 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4881598 Blow-out preventor test tool Michael P. Stockinger, Lee S. Bass 1989-11-21