Patrick J. Stephens

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Whatcom County, WA, US

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Patents Grantslast 30 patents

Information Patent Grant
Cellular grout radiation barrier
- Patent number 6,046,374
- Issue date Apr 4, 2000
- Patrick J. Stephens
- G21 - NUCLEAR PHYSICS NUCLEAR ENGINEERING
Information Patent Grant
Cellular grout radiation barrier
- Patent number 5,819,186
- Issue date Oct 6, 1998
- Patrick J. Stephens
- G21 - NUCLEAR PHYSICS NUCLEAR ENGINEERING

Patents Applicationslast 30 patents

Information Patent Application
Method and compositions for grouting decommissioned nuclear reactor...
- Publication number 20040202273
- Publication date Oct 14, 2004
- Patrick J. Stephens
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...