Inventor
BREACH WILLIAM D
US6 patents
Patents
6 patentsUS5430087AJul 4, 1995
Carbon black pair with different particle size and improved rubber stock
HYDRIL CO91 citations94
US5294253AMar 15, 1994
Carbon black system and improved rubber stock
HYDRIL CO52 citations94
US5713581AFeb 3, 1998
Fibrous seal for blowout preventer
HYDRIL CO44 citations91
US4684687AAug 4, 1987
Chemical and heat resistant rubber composition
HYDRIL CO25 citations88
US4575522AMar 11, 1986
Rubber composition for geothermal application
HYDRIL CO29 citations88
US5100950AMar 31, 1992
Rubber and fluorocarbon micropowder composition
HYDRIL CO18 citations81