Inventor
GERRARD DAVID P
US13 patents
⚠️ This page may combine multiple inventors who share the name “GERRARD DAVID P”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
GERRARD DAVID P
5 patentsUS8261761B2Sep 11, 2012
Selectively movable seat arrangement and method
GERRARD DAVID P31 citations91
US8604157B2Dec 10, 2013
Crosslinked blends of polyphenylene sulfide and polyphenylsulfone for downhole applications, methods of manufacture, and uses thereof
GERRARD DAVID P14 citations82
US9090812B2Jul 28, 2015
Self-inhibited swell packer compound
GERRARD DAVID P5 citations71
US9038656B2May 26, 2015
Restriction engaging system
GERRARD DAVID P2 citations61
US8739889B2Jun 3, 2014
Annular pressure regulating diaphragm and methods of using same
GERRARD DAVID P0 citations40
REN JIAXIANG
3 patentsUS8939222B2Jan 27, 2015
Shaped memory polyphenylene sulfide (PPS) for downhole packer applications
REN JIAXIANG14 citations82
US9144925B2Sep 29, 2015
Shape memory polyphenylene sulfide manufacturing, process, and composition
REN JIAXIANG6 citations71
US8876944B2Nov 4, 2014
Downhole fluid separation system and method
REN JIAXIANG6 citations71