P

Inventor

VAN WINKLE DENZAL WAYNE

US12 patents
⚠️ This page may combine multiple inventors who share the name “VAN WINKLE DENZAL WAYNE”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

TUBOSCOPE I P INC

4 patents
US6164619ADec 26, 2000

Bi-directional sealing ram

TUBOSCOPE I P INC56 citations93
US6012528AJan 11, 2000

Method and apparatus for replacing a packer element

TUBOSCOPE I P INC48 citations92
US6006647ADec 28, 1999

Actuator with free-floating piston for a blowout preventer and the like

TUBOSCOPE I P INC52 citations92
US5961094AOct 5, 1999

Method and apparatus for replacing a packer element

TUBOSCOPE I P INC24 citations92

VAN WINKLE DENZAL WAYNE

3 patents
US8567490B2Oct 29, 2013

Shear seal blowout preventer

VAN WINKLE DENZAL WAYNE28 citations91
US7181808B1Feb 27, 2007

Buckle or clasp

VAN WINKLE DENZAL WAYNE31 citations91
US8875798B2Nov 4, 2014

Wellsite replacement system and method for using same

VAN WINKLE DENZAL WAYNE2 citations61

VARCO I P

2 patents
US6742597B2Jun 1, 2004

Safety check valve for coiled tubing

VARCO I P22 citations92
US7523644B2Apr 28, 2009

Method and apparatus for verifying the integrity of a joint seal

VARCO I P38 citations91

NAT OILWELL VARCO LP

1 patent
US8770274B2Jul 8, 2014

Shear seal blowout preventer

NAT OILWELL VARCO LP16 citations92

(unassigned)

1 patent
US6113061ASep 5, 2000

Method and apparatus for replacing a packer element

28 citations91

MELANCON JEFFREY THOMAS

1 patent
US9022126B2May 5, 2015

Wellsite equipment replacement system and method for using same

MELANCON JEFFREY THOMAS9 citations78