Inventor
ILFREY WILLIAM T
6 patents
⚠️ This page may combine multiple inventors who share the name “ILFREY WILLIAM T”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
EXXON PRODUCTION RESEARCH CO
5 patentsUS4131287ADec 26, 1978
Annular seal
EXXON PRODUCTION RESEARCH CO113 citations95
US4147221AApr 3, 1979
Riser set-aside system
EXXON PRODUCTION RESEARCH CO89 citations93
US3999617ADec 28, 1976
Self-supported drilling riser
EXXON PRODUCTION RESEARCH CO66 citations92
US3981357ASep 21, 1976
Marine riser
EXXON PRODUCTION RESEARCH CO39 citations88
US4090395AMay 23, 1978
Casing seal and blowout preventer tester and test method
EXXON PRODUCTION RESEARCH CO34 citations86