TREA

Edgar M. Purvis Jr.

Follow

Person

  • Troy, OH, US
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Dual cooling/heating process and composition
    • Patent number 4,742,687
    • Issue date May 10, 1988
    • Columbia Gas System Service Corporation
    • Edward A. Reid
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Absorption refrigeration and heat pump system
    • Patent number 4,742,693
    • Issue date May 10, 1988
    • Columbia Gas System Service Corp
    • Edward A. Reid
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Absorption refrigeration and heat pump system
    • Patent number 4,722,193
    • Issue date Feb 2, 1988
    • Columbia Gas System Service Corp
    • Edgar M. Purvis
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Absorption refrigeration and heat pump system
    • Patent number 4,719,767
    • Issue date Jan 19, 1988
    • Columbia Gas System Service Corp
    • Edward A. Reid
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Dual cooling/heating system energy recovery
    • Patent number 4,691,532
    • Issue date Sep 8, 1987
    • Columbia Gas System Service Corp
    • Edward A. Reid
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Absorption refrigeration and heat pump system
    • Patent number 4,646,541
    • Issue date Mar 3, 1987
    • Columbia Gas System Service Corporation
    • Edward A. Reid
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...