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Gregory Matthew Ferris

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  • Cedar Falls, IA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Air filter restriction indicator gauge
    • Patent number 6,327,902
    • Issue date Dec 11, 2001
    • Engineered Products Company
    • Charles Henry Berry
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Two stage gauge with electrical signal output
    • Patent number 6,307,466
    • Issue date Oct 23, 2001
    • Engineered Products Company
    • Gregory Matthew Ferris
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Fuel filter gauge
    • Patent number 6,289,726
    • Issue date Sep 18, 2001
    • Engineered Products Co.
    • Gregory Matthew Ferris
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Switch gauge
    • Patent number 6,268,791
    • Issue date Jul 31, 2001
    • Engineered Products Company
    • Gregory Matthew Ferris
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Gauge for monitoring air filters
    • Patent number 5,774,056
    • Issue date Jun 30, 1998
    • Engineered Products Co.
    • Charles Henry Berry
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS

Patents Applicationslast 30 patents

  • Information Patent Application

    AIR FILTER RESTRICTION INDICATOR GAUGE
    • Publication number 20010049963
    • Publication date Dec 13, 2001
    • CHARLES HENRY BERRY
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL