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John D. Koos
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Orange, CA, US
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last 30 patents
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Patent Grant
Cylinder rod fire protection system
Patent number
5,252,005
Issue date
Oct 12, 1993
Paul-Munroe Hydraulics, Inc.
John D. Koos
E21 - EARTH DRILLING MINING
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Patent Grant
Passive fire protection system for marine risers
Patent number
5,169,265
Issue date
Dec 8, 1992
Paul-Munroe Hydraulics, Inc.
Bryan V. Butler
E21 - EARTH DRILLING MINING
Information
Patent Grant
Passive fire protective systems for articulating joints and flexibl...
Patent number
5,158,397
Issue date
Oct 27, 1992
Paul-Munroe Hydraulics, Inc.
John D. Koos
E21 - EARTH DRILLING MINING