Fredric L. Hettinger

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Ojai, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Disconnectable production riser assembly
- Patent number 4,397,357
- Issue date Aug 9, 1983
- Vetco Offshore, Inc.
- Fredric L. Hettinger
- E21 - EARTH DRILLING MINING
Information Patent Grant
Marine production riser system and method of installing same
- Patent number 4,182,584
- Issue date Jan 8, 1980
- Mobil Oil Corporation
- Narayana N. Panicker
- B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT