Raymond Paul Langevin

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West Hartford, CT, US

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Patents Grantslast 30 patents

Information Patent Grant
Crack free metallic articles
- Patent number 6,103,402
- Issue date Aug 15, 2000
- United Technologies Corporation
- John Joseph Marcin
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Method of repairing metallic articles by energy beam deposition wit...
- Patent number 5,914,059
- Issue date Jun 22, 1999
- United Technologies Corporation
- John Joseph Marcin
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Containerless method of producing crack free metallic articles by e...
- Patent number 5,900,170
- Issue date May 4, 1999
- United Technologies Corporation
- John Joseph Marcin
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR