TREA

Fredric F. Ehrich

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  • Marblehead, MA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Microturbomachinery
    • Patent number 6,392,313
    • Issue date May 21, 2002
    • Massachusetts Institute of Technology
    • Alan H. Epstein
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Microturbomachinery
    • Patent number 5,932,940
    • Issue date Aug 3, 1999
    • Massachusetts Institute of Technology
    • Alan H. Epstein
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Balancing method and product
    • Patent number 5,214,585
    • Issue date May 25, 1993
    • General Electric Company
    • Fredric F. Ehrich
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES