John J. Marra

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Palm Beach Gardens, FL, US

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Patents Grantslast 30 patents

Information Patent Grant
Method and system for designing a low pressure turbine shaft
- Patent number 6,625,507
- Issue date Sep 23, 2003
- United Technologies Corporation
- Donna R. Dickerson
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Method and system for designing a spline coupling
- Patent number 6,587,741
- Issue date Jul 1, 2003
- United Technologies Corporation
- Gregory E. Chetta
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Seal accommodating thermal expansion between adjacent casings in ga...
- Patent number 5,141,393
- Issue date Aug 25, 1992
- United Technologies Corporation
- John J. Marra
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Method of balancing a rotor
- Patent number 4,835,827
- Issue date Jun 6, 1989
- United Technologies Corporation
- John J. Marra
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Rotor balance system
- Patent number 4,784,012
- Issue date Nov 15, 1988
- United Technologies Corporation
- John J. Marra
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES