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William J. Rankin
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Sapulpa, OK, US
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Patents Grants
last 30 patents
Information
Patent Grant
Pipeline debris shearing device
Patent number
9,505,040
Issue date
Nov 29, 2016
TDW Delaware, Inc.
William J. Rankin
B08 - CLEANING
Information
Patent Grant
Pipeline debris shearing device
Patent number
9,089,884
Issue date
Jul 28, 2015
TDW Delaware, Inc.
William J. Rankin
B08 - CLEANING
Information
Patent Grant
Pipeline cleaning pig with self-energizing diagonally oriented scra...
Patent number
8,650,695
Issue date
Feb 18, 2014
TDW Delaware Inc.
Rick D. Pruett
B08 - CLEANING
Information
Patent Grant
System and method for detecting the passage of an object in pipelin...
Patent number
8,378,667
Issue date
Feb 19, 2013
TDW Delaware Inc.
Stephen J. Miska
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Pipeline pig signal with adjustable mounting
Patent number
7,861,665
Issue date
Jan 4, 2011
TDW Delaware Inc.
William Jack Rankin
B08 - CLEANING
Information
Patent Grant
Cup or disc for use as a part of a pipeline pig
Patent number
6,067,682
Issue date
May 30, 2000
TDW Delaware, Inc.
William Jack Rankin
B08 - CLEANING
Information
Patent Grant
Magnetic cleaning pig
Patent number
5,699,577
Issue date
Dec 23, 1997
TDW Delaware, Inc.
William Jack Rankin
B08 - CLEANING
Information
Patent Grant
Elastomeric disc for use on a pipeline pig
Patent number
4,984,322
Issue date
Jan 15, 1991
TDW Delaware, Inc.
Hyun J. Cho
B08 - CLEANING
Information
Patent Grant
Cleaning pig with selectable debris flushing action
Patent number
4,825,498
Issue date
May 2, 1989
TDW Delaware, Inc.
William J. Rankin
B08 - CLEANING
Patents Applications
last 30 patents
Information
Patent Application
Pipeline Debris Shearing Device
Publication number
20160184872
Publication date
Jun 30, 2016
TDW Delaware, Inc.
William J. Rankin
B08 - CLEANING
Information
Patent Application
Pipeline Debris Shearing Device
Publication number
20120017386
Publication date
Jan 26, 2012
William J. Rankin
B08 - CLEANING
Information
Patent Application
Magnetometer-based Detector for Objects in a Pipeline
Publication number
20100295543
Publication date
Nov 25, 2010
Stephen J. Miska
G01 - MEASURING TESTING
Information
Patent Application
Pipeline Cleaning Pig with Self-Energizing Diagonally Oriented Scra...
Publication number
20100180391
Publication date
Jul 22, 2010
TDW Delaware, Inc.
Rick D. Pruett
B08 - CLEANING
Information
Patent Application
PIPELINE PIG SIGNAL WITH ADJUSTABLE MOUNTING
Publication number
20080276859
Publication date
Nov 13, 2008
William Jack Rankin
B08 - CLEANING