P

Inventor

KROLL DENNIS E

US8 patents
⚠️ This page may combine multiple inventors who share the name “KROLL DENNIS E”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

BAKER HUGHES INC

3 patents
US6167963B1Jan 2, 2001

Removable non-metallic bridge plug or packer

BAKER HUGHES INC285 citations98
US8016295B2Sep 13, 2011

Helical backup element

BAKER HUGHES INC63 citations96
US7806177B2Oct 5, 2010

Retractable downhole backup assembly for circumferential seal support

BAKER HUGHES INC11 citations82

BISHOP DAVID S

3 patents
US8307891B2Nov 13, 2012

Retractable downhole backup assembly for circumferential seal support

BISHOP DAVID S12 citations83
US8393388B2Mar 12, 2013

Retractable petal collet backup for a subterranean seal

BISHOP DAVID S18 citations82
US8322413B2Dec 4, 2012

Twin latch wireline retrieval tool

BISHOP DAVID S13 citations82

BAKER HUGHES INCOPORATED

1 patent
US6651738B1Nov 25, 2003

Downhole isolation device with retained valve member

BAKER HUGHES INCOPORATED18 citations90

PALMER LARRY T

1 patent
US8919452B2Dec 30, 2014

Casing spears and related systems and methods

PALMER LARRY T6 citations81