Inventor
HART DANIEL R
US12 patents
⚠️ This page may combine multiple inventors who share the name “HART DANIEL R”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
BAKER HUGHES INC
7 patentsUS6408946B1Jun 25, 2002
Multi-use tubing disconnect
BAKER HUGHES INC144 citations93
US8356671B2Jan 22, 2013
Tool with multi-size ball seat having segmented arcuate ball support member
BAKER HUGHES INC24 citations91
US7905279B2Mar 15, 2011
Combination whipstock and seal bore diverter system
BAKER HUGHES INC9 citations79
US5217077AJun 8, 1993
Resettable packer
BAKER HUGHES INC13 citations72
US7575049B2Aug 18, 2009
Exit window milling assembly with improved restraining force
BAKER HUGHES INC4 citations60
US9145734B2Sep 29, 2015
Casing manipulation assembly with hydraulic torque locking mechanism
BAKER HUGHES INC1 citations50
US7231979B2Jun 19, 2007
Short radius whipstock system
BAKER HUGHES INC0 citations47
HART DANIEL R
3 patentsUS10309178B2Jun 4, 2019
Mills with shearable cutting members for milling casings in wellbores
HART DANIEL R2 citations69
US9303475B2Apr 5, 2016
Tool with multisize segmented ring seat
HART DANIEL R2 citations60
US10450820B2Oct 22, 2019
Method and apparatus for swarf disposal in wellbores
HART DANIEL R0 citations44