Inventor
SCHWENDEMANN KENNETH L
US39 patents
⚠️ This page may combine multiple inventors who share the name “SCHWENDEMANN KENNETH L”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HALLIBURTON ENERGY SERV INC
15 patentsUS7353879B2Apr 8, 2008
Biodegradable downhole tools
HALLIBURTON ENERGY SERV INC324 citations99
US7210533B2May 1, 2007
Disposable downhole tool with segmented compression element and method
HALLIBURTON ENERGY SERV INC153 citations99
US6367547B1Apr 9, 2002
Downhole separator for use in a subterranean well and method
HALLIBURTON ENERGY SERV INC202 citations99
US7363967B2Apr 29, 2008
Downhole tool with navigation system
HALLIBURTON ENERGY SERV INC188 citations98
US7322416B2Jan 29, 2008
Methods of servicing a well bore using self-activating downhole tool
HALLIBURTON ENERGY SERV INC205 citations98
US6450263B1Sep 17, 2002
Remotely actuated rupture disk
HALLIBURTON ENERGY SERV INC138 citations98
US6722427B2Apr 20, 2004
Wear-resistant, variable diameter expansion tool and expansion methods
HALLIBURTON ENERGY SERV INC180 citations97
US6279651B1Aug 28, 2001
Tool for managing fluid flow in a well
HALLIBURTON ENERGY SERV INC66 citations96
US6125938AOct 3, 2000
Control module system for subterranean well
HALLIBURTON ENERGY SERV INC83 citations96
US6808024B2Oct 26, 2004
Downhole seal assembly and method for use of same
HALLIBURTON ENERGY SERV INC63 citations95
US5894890AApr 20, 1999
Normally closed retainer valve with fail-safe pump through capability
HALLIBURTON ENERGY SERV INC31 citations92
US5803170ASep 8, 1998
Well line protective apparatus
HALLIBURTON ENERGY SERV INC43 citations92
US5884708AMar 23, 1999
Normally closed retainer valve with fail-safe pump through capability
HALLIBURTON ENERGY SERV INC12 citations82
US5884703AMar 23, 1999
Normally closed retainer valve with fail-safe pump through capability
HALLIBURTON ENERGY SERV INC11 citations82
USRE42733ESep 27, 2011
Wear-resistant, variable diameter expansion tool and expansion methods
HALLIBURTON ENERGY SERV INC1 citations51
OTIS ENG CO
9 patentsUS4636934AJan 13, 1987
Well valve control system
OTIS ENG CO177 citations97
US4702320AOct 27, 1987
Method and system for attaching and removing equipment from a wellhead
OTIS ENG CO111 citations96
US4448216AMay 15, 1984
Subsurface safety valve
OTIS ENG CO83 citations94
US5179973AJan 19, 1993
Valve with pressure assisted closing system
OTIS ENG CO22 citations92
US5050839ASep 24, 1991
Valve
OTIS ENG CO29 citations92
US4494609AJan 22, 1985
Test tree
OTIS ENG CO51 citations92
US4469179ASep 4, 1984
Safety system
OTIS ENG CO20 citations81
US4452305AJun 5, 1984
Kickover tool with pivot arm retraction means
OTIS ENG CO8 citations74
US4398601AAug 16, 1983
Parking tool for pumpdown well completion system
OTIS ENG CO6 citations62
HALLIBURTON ENERGY SERVICES INC
8 patentsUS10006270B2Jun 26, 2018
Subsea mechanism to circulate fluid between a riser and tubing string
HALLIBURTON ENERGY SERVICES INC5 citations73
US10053976B2Aug 21, 2018
Localized wireless communications in a downhole environment
HALLIBURTON ENERGY SERVICES INC2 citations64
US12560046B1Feb 24, 2026
Subsea well intervention systems and methods
HALLIBURTON ENERGY SERVICES INC0 citations61
US12560045B1Feb 24, 2026
Subsea well intervention systems and methods
HALLIBURTON ENERGY SERVICES INC0 citations61
US11346209B2May 31, 2022
Downhole interventionless depth correlation
HALLIBURTON ENERGY SERVICES INC0 citations58
US10961817B2Mar 30, 2021
Electrohydraulic quick union for subsea landing string
HALLIBURTON ENERGY SERVICES INC1 citations51
US12571279B1Mar 10, 2026
Subsea well intervention systems and methods
HALLIBURTON ENERGY SERVICES INC0 citations50
US11965394B1Apr 23, 2024
Subsea test tree fast ball actuation with low pressure pump through capability
HALLIBURTON ENERGY SERVICES INC0 citations45