Patents by Inventor Clarence J. Murphy

Clarence J. Murphy 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).

  • Biocompatible polyisoprene-polyurethane interpenetrating polymer network compositions and medical devices made therefrom
    Patent number: 5786426
    Abstract: Interpenetrating polymer networks (IPN's), composed of polyisoprene (PI) and polyurethane (PU), together with a process for their preparation and their use in the manufacture of medical devices, such as catheters and catheter balloons, are disclosed. Both components are elastomers. The PI component is chemically crosslinked. The PU component is crystallizable and contains only physical crosslinks. The IPN's have glass transition temperatures in the range of from -65.degree. C. to -40.degree. C.
    Type: Grant
    Filed: July 14, 1997
    Date of Patent: July 28, 1998
    Assignee: Schneider (USA) Inc
    Inventors: Leslie H. Sperling, Clarence J. Murphy, Vinay Mishra
  • Process for producing biocompatible polyisoprene-polyurethane interpenetrating polymer network compositions for use in medical devices and the like
    Patent number: 5786425
    Abstract: Interpenetrating polymer networks (IPN's), composed of polyisoprene (PI) and polyurethane (PU), together with a process for their preparation and their use in the manufacture of medical devices, such as catheters and catheter balloons, are disclosed. Both components are elastomers. The PI component is chemically crosslinked. The PU component is crystallizable and contains only physical crosslinks. The IPN's have glass transition temperatures in the range of from -65.degree. C. to -40.degree. C.
    Type: Grant
    Filed: June 18, 1997
    Date of Patent: July 28, 1998
    Assignee: Schneider (USA) Inc
    Inventors: Leslie H. Sperling, Clarence J. Murphy, Vinay Mishra
  • Bicompatible polyisoprene-polyurethane interpenetrating polymer network compositions and medical devices made therefrom
    Patent number: 5783633
    Abstract: Interpenetrating polymer networks (IPN's), composed of polyisoprene (PI) and polyurethane (PU), together with a process for their preparation and their use in the manufacture of medical devices, such as catheters and catheter balloons, are disclosed. Both components are elastomers. The PI component is chemically crosslinked. The PU component is crystallizable and contains only physical crosslinks. The IPN's have glass transition temperatures in the range of from -65.degree.C. to -40.degree.C.
    Type: Grant
    Filed: June 18, 1997
    Date of Patent: July 21, 1998
    Assignee: Schneider (USA) Inc
    Inventors: Leslie H. Sperling, Clarence J. Murphy, Vinay Mishra
  • Optoelectronic devices
    Patent number: 5112531
    Abstract: This invention relates to acrylic polymers and more specifically to polyalamides and polyacrylates such as poly{2-[(N-2-methyl-5-nitrophenylamino)ethyl acrylate]} and poly[(N-2-methyl-4-nitrophenyl)acrylamide]. These acrylic polymers are particularly useful as nonlinear optical components in various electrical devices for processing optical amplifiers, generators, computational devices and the like.
    Type: Grant
    Filed: July 16, 1990
    Date of Patent: May 12, 1992
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Leslie H. Sperling, Clarence J. Murphy, Warren A. Rosen, Himanshu Jain, Warren N. Herman
  • Nonlinear optical acrylic polymers and use thereof in optical and electro-optic devices
    Patent number: 5079321
    Abstract: This invention relates to acrylic polymers and more specifically to polyalamides and polyacrylates such as poly{(2-[(N-2-methyl-5-nitrophenylamino)ethyl acrylate]} and poly[(N-2-methyl-4-nitrophenyl)acrylamide]. These acrylic polymers are particularly useful as nonlinear optical components in various electrical devices for processing optical signals including interferometors, optical switches, optical amplifiers, generators, computational devices and the like.
    Type: Grant
    Filed: July 16, 1990
    Date of Patent: January 7, 1992
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Leslie H. Sperling, Clarence J. Murphy, Warren A. Rosen, Himanshu Jain, Warren N. Herman