Patents by Inventor Arthur L. Schwartz

Arthur L. Schwartz has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Synthesis of tyrosine-derived diphenol monomers
    Patent number: 5670602
    Abstract: A method for preparing diphenol compounds, which method includes the steps of coupling a hydroxyphenyl carboxylic acid with a L-tyrosine ester in a water-miscible organic reaction solvent containing a carbodiimide capable of forming a water-soluble urea by-product, thereby forming a diphenol reaction product; and combining the reaction mixture with an amount of water effective to precipitate the diphenol as a water-immiscible organic phase, so that a water-immiscible organic phase is formed containing the diphenol reaction product. New diphenol monomers and polymers polymerized therefrom are also disclosed.
    Type: Grant
    Filed: March 29, 1996
    Date of Patent: September 23, 1997
    Assignee: Rutgers, The State University
    Inventors: Joachim B. Kohn, Stephen J. Brocchini, Arthur L. Schwartz
  • Synthesis of tyrosine-derived diphenol monomers
    Patent number: RE37795
    Abstract: A method for preparing diphenol compounds, which method includes the steps of coupling a hydroxyphenyl carboxylic acid with a L-tyrosine ester in a water-miscible organic reaction solvent containing a carbodiimide capable of forming a water-soluble urea by-product, thereby forming a diphenol reaction product; and combining the reaction mixture with an amount of water effective to precipitate the diphenol as a water-immiscible organic phase, so that a water-immiscible organic phase is formed containing the diphenol reaction product. New diphenol monomers and polymers polymerized therefrom are also discussed.
    Type: Grant
    Filed: July 21, 1999
    Date of Patent: July 16, 2002
    Inventors: Joachim B. Kohn, Stephen Brocchini, Arthur L. Schwartz