Patents by Inventor Richard Carl Capozza

Richard Carl Capozza 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).

  • Polymeric orthoesters
    Patent number: 4119579
    Abstract: This invention concerns polymeric orthoesters having a repeating mer comprising a hydrocarbon radical and an orthoester functionality of the general formula: ##STR1## wherein R.sub.1 is a monovalent radical, R.sub.2 is a hydrocarbon radical, a is 2 to 3, and n is at least 10. The polymers are useful for making articles of manufacture and as coatings for beneficial agents.
    Type: Grant
    Filed: September 28, 1977
    Date of Patent: October 10, 1978
    Assignee: Alza Corporation
    Inventor: Richard Carl Capozza
  • Poly(N-acetyl-D-glucosamine) products
    Patent number: 4074713
    Abstract: Poly(N-acetyl-D-glucosamine) is soluble in hexafluoroisopropyl alcohol and hexafluoracetone sesquihydrate. The solutions formed may be wet or dry spun into filaments, or cast into films or solid articles, which may be used as absorbable surgical sutures, or other absorbable surgical elements. Poly(N-acetyl-D-glucosamine) is enzymatically degradable in living tissue, and is resistant to hydrolytic degradation, and, therefore, surgical elements thereof have good storage characteristics under a wide variety of conditions.
    Type: Grant
    Filed: July 22, 1976
    Date of Patent: February 21, 1978
    Assignee: American Cyanamid Company
    Inventor: Richard Carl Capozza
  • Poly(N-acetyl-D-glucosamine) products
    Patent number: 4074366
    Abstract: Poly(N-acetyl-D-glucosamine) is soluble in hexafluoroisopropyl alcohol and hexafluoracetone sesquihydrate. The solutions formed may be wet or dry spun into filaments, or cast into films or solid articles, which may be used as absorbable surgical sutures, or other absorbable surgical elements. Poly(N-acetyl-D-glucosamine) is enzymatically degradable in living tissue, and is resistant to hydrolytic degradation, and, therefore, surgical elements thereof have good storage characteristics under a wide variety of conditions.
    Type: Grant
    Filed: July 22, 1976
    Date of Patent: February 21, 1978
    Assignee: American Cyanamid Company
    Inventor: Richard Carl Capozza
  • Solution of poly(N-acetyl-D-glucosamine)
    Patent number: 3989535
    Abstract: Poly(N-acetyl-D-glucosamine) is soluble in hexafluoroisopropyl alcohol and hexafluoracetone sesquihydrate. The solutions formed may be wet or dry spun into filaments, or cast into films or solid articles, which may be used as absorbable surgical sutures, or other absorbable surgical elements. Poly(N-acetyl-D-glucosamine) is enzymatically degradable in living tissue, and is resistant to hydrolytic degradation, and, therefore, surgical elements thereof have good storage characteristics under a wide variety of conditions.
    Type: Grant
    Filed: March 14, 1975
    Date of Patent: November 2, 1976
    Assignee: American Cyanamid Company
    Inventor: Richard Carl Capozza
  • Spinning and shaping poly-(N-acetyl-D-glucosamine)
    Patent number: 3988411
    Abstract: Poly(N-acetyl-D-glucosamine) is soluble in hexafluoroisopropyl alcohol and hexafluoracetone sesquihydrate. The solutions formed may be wet or dry spun into filaments, or cast into films or solid articles, which may be used as absorbable surgical sutures, or other absorbable surgical elements. Poly(N-acetyl-D-glucosamine) is enzymatically degradable in living tissue, and is resistant to hydrolytic degradation, and, therefore, surgical elements thereof have good storage characteristics under a wide variety of conditions.
    Type: Grant
    Filed: March 14, 1975
    Date of Patent: October 26, 1976
    Assignee: American Cyanamid Company
    Inventor: Richard Carl Capozza