Inventor
SENEVIRATNE PADMASIRI DAYA
US6 patents
⚠️ This page may combine multiple inventors who share the name “SENEVIRATNE PADMASIRI DAYA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
VARCO INT
5 patentsUS6276450B1Aug 21, 2001
Apparatus and method for rapid replacement of upper blowout preventers
VARCO INT211 citations96
US6725949B2Apr 27, 2004
Washpipe assembly
VARCO INT80 citations95
US7287544B2Oct 30, 2007
Triple valve blow out preventer
VARCO INT33 citations88
US6994174B2Feb 7, 2006
Washpipe assembly
VARCO INT11 citations82
US7121295B2Oct 17, 2006
Internal blow out preventer ball and seat
VARCO INT9 citations69