Unequal heads

Patents Grantslast 30 patents

  • Information Patent Grant

    Double valve

    • Patent number 7,000,635
    • Issue date Feb 21, 2006
    • Siemens Building Technologies AG
    • Guntram Erbe
    • F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
  • Information Patent Grant

    Shut-off valve

    • Patent number 6,401,753
    • Issue date Jun 11, 2002
    • Siemens Building Technologies AG
    • Kunibert Neu
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Valve with pressure compensation

    • Patent number 5,388,613
    • Issue date Feb 14, 1995
    • Dragerwerk AG
    • Edmund Kruger
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Double ported expansion valve

    • Patent number 4,079,886
    • Issue date Mar 21, 1978
    • Emerson Electric Co.
    • Jude A. Pauli
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    3884268

    • Patent number 3,884,268
    • Issue date May 20, 1975
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    3720234

    • Patent number 3,720,234
    • Issue date Mar 13, 1973
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    3521666

    • Patent number 3,521,666
    • Issue date Jul 28, 1970
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    3495623

    • Patent number 3,495,623
    • Issue date Feb 17, 1970
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    3153424

    • Patent number 3,153,424
    • Issue date Oct 20, 1964
    • G05 - CONTROLLING REGULATING
  • Information Patent Grant

    3035608

    • Patent number 3,035,608
    • Issue date May 22, 1962
    • G05 - CONTROLLING REGULATING
  • Information Patent Grant

    2998027

    • Patent number 2,998,027
    • Issue date Aug 29, 1961
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    2990721

    • Patent number 2,990,721
    • Issue date Jul 4, 1961
    • G05 - CONTROLLING REGULATING
  • Information Patent Grant

    2880748

    • Patent number 2,880,748
    • Issue date Apr 7, 1959
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    2786487

    • Patent number 2,786,487
    • Issue date Mar 26, 1957
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    2692612

    • Patent number 2,692,612
    • Issue date Oct 26, 1954
    • G05 - CONTROLLING REGULATING
  • Information Patent Grant

    2682891

    • Patent number 2,682,891
    • Issue date Jul 6, 1954
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    2499496

    • Patent number 2,499,496
    • Issue date Mar 7, 1950
    • G05 - CONTROLLING REGULATING
  • Information Patent Grant

    2347351

    • Patent number 2,347,351
    • Issue date Apr 25, 1944
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    2243863

    • Patent number 2,243,863
    • Issue date Jun 3, 1941
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    2159129

    • Patent number 2,159,129
    • Issue date May 23, 1939
    • G05 - CONTROLLING REGULATING
  • Information Patent Grant

    2095395

    • Patent number 2,095,395
    • Issue date Oct 12, 1937
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    2069364

    • Patent number 2,069,364
    • Issue date Feb 2, 1937
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    2019193

    • Patent number 2,019,193
    • Issue date Oct 29, 1935
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    1994660

    • Patent number 1,994,660
    • Issue date Mar 19, 1935
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    1927727

    • Patent number 1,927,727
    • Issue date Sep 19, 1933
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    1911785

    • Patent number 1,911,785
    • Issue date May 30, 1933
    • F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
  • Information Patent Grant

    1878749

    • Patent number 1,878,749
    • Issue date Sep 20, 1932
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    1872157

    • Patent number 1,872,157
    • Issue date Aug 16, 1932
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    1851016

    • Patent number 1,851,016
    • Issue date Mar 29, 1932
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    1840564

    • Patent number 1,840,564
    • Issue date Jan 12, 1932
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

  • Information Patent Application

    Double valve

    • Publication number 20040129321
    • Publication date Jul 8, 2004
    • Guntram Erbe
    • F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
  • Information Patent Application

    Shut-off valve

    • Publication number 20010035219
    • Publication date Nov 1, 2001
    • Siemens Building Technologies AG
    • Kunibert Neu
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...