Patents Represented by Attorney, Agent or Law Firm Talivaldis Cepuritis
  • Crystal resonator based oscillator formed by attaching two separate housings
    Patent number: 6759913
    Abstract: A double-sided oscillator package having an open-top oscillator housing adapted to receive electronic components and a hermetically sealed resonator housing containing a piezoelectric element is described. The electronic components and piezoelectric element are electrically connected. The respective housing can be manufactured separately and the components thereof assembled thereafter to form the package.
    Type: Grant
    Filed: June 29, 2001
    Date of Patent: July 6, 2004
    Assignee: CTS Corporation
    Inventor: John Biernacki
  • Production of polysuccinimide and polyaspartic acid from maleic anhydride and ammonia
    Patent number: 5296578
    Abstract: Production of polysuccinimide by reacting maleic anhydride and ammonia at elevated temperatures. The base hydrolyzed polyaspartic acid product.
    Type: Grant
    Filed: September 18, 1992
    Date of Patent: March 22, 1994
    Assignee: Donlar Corporation
    Inventors: Larry P. Koskan, Abdul R. Y. Meah