Inventor
SUMNER CYRIL R
US8 patents
⚠️ This page may combine multiple inventors who share the name “SUMNER CYRIL R”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HALLIBURTON CO
6 patentsUS4762067AAug 9, 1988
Downhole perforating method and apparatus using secondary explosive detonators
HALLIBURTON CO157 citations96
US4512418AApr 23, 1985
Mechanically initiated tubing conveyed perforator system
HALLIBURTON CO57 citations92
US4716832AJan 5, 1988
High temperature high pressure detonator
HALLIBURTON CO27 citations91
US4690218ASep 1, 1987
Method for depth control and detonation of tubing conveyed gun assembly
HALLIBURTON CO19 citations72
US4478294AOct 23, 1984
Positive fire indicator system
HALLIBURTON CO15 citations72
US4778009AOct 18, 1988
Shock actuated switch for perforating gun assembly
HALLIBURTON CO16 citations70