Inventor
SMITH GARY HENRY
GB4 patents
Patents
4 patentsUS9376889B2Jun 28, 2016
Downhole valve assembly
HALLIBURTON MFG & SERVICES LTD10 citations79
US9376891B2Jun 28, 2016
Valve actuating apparatus
HALLIBURTON MFG & SERVICES LTD1 citations47
US9316088B2Apr 19, 2016
Downhole contingency apparatus
HALLIBURTON MFG & SERVICES LTD1 citations47
US9482074B2Nov 1, 2016
Valve actuating apparatus
HALLIBURTON MFG & SERVICES LTD0 citations37