Patents Represented by Attorney Jay Friedenson

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  • Leak-detecting refrigerant compositions containing oxazolyl-coumarin dyes
    Patent number: 6132636
    Abstract: Refrigerant compositions containing oxazolyl-coumarin dyes for leak detection under ultraviolet light, and methods for the use of such dyes in leak detection.
    Type: Grant
    Filed: October 23, 1998
    Date of Patent: October 17, 2000
    Inventors: Rajiv R. Singh, Robert J. Schiller, Jr., Harold J. Kieta