HB

H. Paul Barringer

HY Hydril: 3 patents #37 of 135Top 30%
Overall (All Time): #1,655,303 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5338074 Threaded pipe connection Gary E. Kirsch, Keith C. Mott, Lawrence Y. Tung 1994-08-16
4817962 Universal tubular connection having a variable metal-to-metal seal width corresponding to material yield strength Keith C. Mott, Gary E. Kirsch, Lawrence Y. Tung 1989-04-04
4736967 Tubular pin configuration to prevent galling while ensuring sealing Keith C. Mott, Patrick E. McDonald, Gary E. Kirsch 1988-04-12