Robert Levay

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Yorba Linda, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Tractor with improved valve system
- Patent number 8,245,796
- Issue date Aug 21, 2012
- WWT International, Inc.
- Philip W. Mock
- E21 - EARTH DRILLING MINING
Information Patent Grant
Tractor with improved valve system
- Patent number 7,607,495
- Issue date Oct 27, 2009
- Western Well Tool, Inc.
- Duane Bloom
- E21 - EARTH DRILLING MINING
Information Patent Grant
Tractor with improved valve system
- Patent number 7,353,886
- Issue date Apr 8, 2008
- Western Well Tool, Inc.
- Duane Bloom
- E21 - EARTH DRILLING MINING
Information Patent Grant
Tractor with improved valve system
- Patent number 7,188,681
- Issue date Mar 13, 2007
- Western Well Tool, Inc.
- Duane Bloom
- E21 - EARTH DRILLING MINING
Information Patent Grant
Tractor with improved valve system
- Patent number 7,080,700
- Issue date Jul 25, 2006
- Western Well Tool, Inc.
- Duane Bloom
- E21 - EARTH DRILLING MINING
Information Patent Grant
Tractor with improved valve system
- Patent number 6,679,341
- Issue date Jan 20, 2004
- Western Well Tool, Inc.
- Duane Bloom
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
TRACTOR WITH IMPROVED VALVE SYSTEM
- Publication number 20100307832
- Publication date Dec 9, 2010
- Western Well Tool, Inc.
- Philip W. Mock
- E21 - EARTH DRILLING MINING
Information Patent Application
TRACTOR WITH IMPROVED VALVE SYSTEM
- Publication number 20100108387
- Publication date May 6, 2010
- Western Well Tool, Inc.
- Duane Bloom
- E21 - EARTH DRILLING MINING
Information Patent Application
TRACTOR WITH IMPROVED VALVE SYSTEM
- Publication number 20080217059
- Publication date Sep 11, 2008
- DUANE BLOOM
- E21 - EARTH DRILLING MINING
Information Patent Application
Tractor with improved valve system
- Publication number 20070151764
- Publication date Jul 5, 2007
- Duane Bloom
- E21 - EARTH DRILLING MINING
Information Patent Application
Tractor with improved valve system
- Publication number 20070000693
- Publication date Jan 4, 2007
- Duane Bloom
- E21 - EARTH DRILLING MINING
Information Patent Application
Tractor with improved valve system
- Publication number 20040144548
- Publication date Jul 29, 2004
- Duane Bloom
- E21 - EARTH DRILLING MINING
Information Patent Application
Tractor with improved valve system
- Publication number 20020112859
- Publication date Aug 22, 2002
- Duane Bloom
- E21 - EARTH DRILLING MINING