Patents Represented by Attorney Richarc C. Litman

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  • Internal combustion engine variable tuned exhaust system
    Patent number: 5678404
    Abstract: An exhaust system for an internal combustion engine having an exhaust port and an exhaust chamber communicating between the ports includes a variable dimension element in the exhaust chamber adapted to vary an effective dimension of the exhaust chamber during operation of the engine.
    Type: Grant
    Filed: September 30, 1994
    Date of Patent: October 21, 1997
    Inventor: Peter John McManus
  • Modular wrought iron grid
    Patent number: D377395
    Type: Grant
    Filed: August 21, 1995
    Date of Patent: January 14, 1997
    Inventor: Frank Vyvoda