Jon E. Hed

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Ventura, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Tree capless cone seal manifold
- Patent number 4,754,813
- Issue date Jul 5, 1988
- Vetco Gray Inc.
- Charles E. Jennings
- E21 - EARTH DRILLING MINING
Information Patent Grant
Retrievable exploration guide base/completion guide base system
- Patent number 4,611,661
- Issue date Sep 16, 1986
- Vetco Offshore Industries, Inc.
- Jon E. Hed
- E21 - EARTH DRILLING MINING