asphalts bitumens pitches

Patents Grantslast 30 patents

  • Information Patent Grant

    Insulating and anticorrosive composition for electrical devices

    • Patent number 5,776,606
    • Issue date Jul 7, 1998
    • Pirelli Cavi S.p.A.
    • Emilio Locatelli
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Encapsulant compositions for use in signal transmission devices

    • Patent number 4,985,475
    • Issue date Jan 15, 1991
    • Minnesota Mining and Manufacturing
    • Thomas S. Croft
    • G02 - OPTICS
  • Information Patent Grant

    Coil impregnant with modified asphaltite base

    • Patent number 4,282,038
    • Issue date Aug 4, 1981
    • General Electric Company
    • Mason H. Earing
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Modified asphaltite potting composition

    • Patent number 4,022,635
    • Issue date May 10, 1977
    • General Electric Company
    • Mason H. Earing
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    3853799

    • Patent number 3,853,799
    • Issue date Dec 10, 1974
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    2396910

    • Patent number 2,396,910
    • Issue date Mar 19, 1946
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    1752917

    • Patent number 1,752,917
    • Issue date Apr 1, 1930
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    1596760

    • Patent number 1,596,760
    • Issue date Aug 17, 1926
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    1429503

    • Patent number 1,429,503
    • Issue date Sep 19, 1922
    • H01 - BASIC ELECTRIC ELEMENTS