Richard A. Roberts

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Houston, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Method and system for maintenance and servicing of subsea wells
- Patent number 4,730,677
- Issue date Mar 15, 1988
- Otis Engineering Corporation
- Joseph L. Pearce
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method and apparatus for simultaneous trenching and pipe laying in...
- Patent number 4,710,059
- Issue date Dec 1, 1987
- Brown & Root, Inc.
- Billy M. Hazlegrove
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING