Malcolm R. Taylor

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Houston, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Drill bit and cutter therefor
- Patent number 4,862,977
- Issue date Sep 5, 1989
- Reed Tool Company, Ltd.
- John D. Barr
- E21 - EARTH DRILLING MINING
Information Patent Grant
Rotary drill bits
- Patent number 4,697,654
- Issue date Oct 6, 1987
- NL Petroleum Products Limited
- John D. Barr
- E21 - EARTH DRILLING MINING
Information Patent Grant
Drill bit and cutter therefor
- Patent number 4,669,556
- Issue date Jun 2, 1987
- NL Industries, Inc.
- John D. Barr
- E21 - EARTH DRILLING MINING