Roy L. Chandler

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Arlington, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Drill device for a drilling apparatus
- Patent number 6,702,046
- Issue date Mar 9, 2004
- Charles T. Webb
- E21 - EARTH DRILLING MINING
Information Patent Grant
Directional drilling apparatus with shifting cam
- Patent number 6,401,842
- Issue date Jun 11, 2002
- Charles T. Webb
- E21 - EARTH DRILLING MINING
Information Patent Grant
Directional drilling system and apparatus
- Patent number 6,082,470
- Issue date Jul 4, 2000
- Webb; Charles T.
- Charles T. Webb
- E21 - EARTH DRILLING MINING
Information Patent Grant
Directional drilling system
- Patent number 5,957,222
- Issue date Sep 28, 1999
- Webb; Charles T.
- Charles T. Webb
- E21 - EARTH DRILLING MINING
Information Patent Grant
Lever-actuated combination locking apparatus
- Patent number 5,197,313
- Issue date Mar 30, 1993
- McCullough; Richard P.
- Roy L. Chandler
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES

Patents Applicationslast 30 patents

Information Patent Application
Drill device for a drilling apparatus
- Publication number 20020139586
- Publication date Oct 3, 2002
- Charles T. Webb
- E21 - EARTH DRILLING MINING
Information Patent Application
Directional drilling apparatus with shifting cam
- Publication number 20020011359
- Publication date Jan 31, 2002
- Charles T. Webb
- E21 - EARTH DRILLING MINING