TREA

Pforzheimer Uhren Rohwerke Porta GmbH

Follow

Organization

  • Pforzheim, DE
Organizations

Patents Grantslast 30 patents

  • Information Patent Grant

    Watch hand adjustment gear
    • Patent number 4,970,709
    • Issue date Nov 13, 1990
    • Pforzheimer Uhrenrohwerke PORTA GmbH
    • Wolfgang Kroner
    • G04 - HOROLOGY
  • Information Patent Grant

    Drive coupling
    • Patent number 4,860,270
    • Issue date Aug 22, 1989
    • Pforzheimer Uhren Rohwerke Porta GmbH
    • Wolfgang Kroener
    • G04 - HOROLOGY
  • Information Patent Grant

    Arrangement for limiting the axial play of gears of a watch time in...
    • Patent number 4,722,076
    • Issue date Jan 26, 1988
    • Pforzheimer Uhren Rohwerke Porta GmbH
    • Hans-Georg Schnell
    • G04 - HOROLOGY
  • Information Patent Grant

    Power supply control arrangement for a watch stepping motor
    • Patent number 4,719,368
    • Issue date Jan 12, 1988
    • Pforzheimer Uhren Rohwerke Porta GmbH
    • Wolfgang Burkhardt
    • G04 - HOROLOGY
  • Information Patent Grant

    Hour gear structure of a watch
    • Patent number 4,719,609
    • Issue date Jan 12, 1988
    • Pforzheimer Uhrenrohwerke PORTA GmbH
    • Wolfgang Kroner
    • G04 - HOROLOGY
  • Information Patent Grant

    Watch operating mechanism mounting arrangement
    • Patent number 4,704,037
    • Issue date Nov 3, 1987
    • Pforzheimer Uhren Rohwerke Porta GmbH
    • Wolfgang Kroner
    • G04 - HOROLOGY
  • Information Patent Grant

    Wristwatch stepping motor
    • Patent number 4,703,208
    • Issue date Oct 27, 1987
    • Pforzheimer Uhren Rohwerke Porta GmbH
    • Wolfgang Burkhardt
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Wristwatch
    • Patent number 4,671,670
    • Issue date Jun 9, 1987
    • Pforzheimer Uhren Rohwerke Porta GmbH
    • Wolfgang Kroner
    • G04 - HOROLOGY
  • Information Patent Grant

    Watch drive
    • Patent number 4,652,142
    • Issue date Mar 24, 1987
    • Pforzheimer Uhren Rohwerke Porta GmbH
    • Gerhard Rupprecht
    • G04 - HOROLOGY
  • Information Patent Grant

    Watch hand drive shaft structure
    • Patent number 4,626,109
    • Issue date Dec 2, 1986
    • Pforzheimer Uhren Rohwerke Porta GmbH
    • Wolfgang Kroener
    • G04 - HOROLOGY
  • Information Patent Grant

    Instrument illuminating arrangement
    • Patent number 4,561,042
    • Issue date Dec 24, 1985
    • Pforzheimer Uhren-Rohwerke PORTA GmbH & Co.
    • Hans-Joachim Wehner
    • G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Trademarklast 30 trademarks