Inventor
KIRSCH GARY E
US4 patents
Patents
4 patentsUS5338074AAug 16, 1994
Threaded pipe connection
HYDRIL CO46 citations89
US4736967AApr 12, 1988
Tubular pin configuration to prevent galling while ensuring sealing
HYDRIL CO46 citations89
US4610834ASep 9, 1986
Apparatus and method for installing internal annular rings in tubular box members
HYDRIL CO36 citations87
US4817962AApr 4, 1989
Universal tubular connection having a variable metal-to-metal seal width corresponding to material yield strength
HYDRIL CO20 citations79