Patents by Inventor Douglas Weaver

Douglas Weaver 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).

  • Polymerizable biodegradable polymers including carbonate or dioxanone linkages
    Patent number: 6177095
    Abstract: Water-soluble macromers including at least one hydrolysable linkage formed from carbonate or dioxanone groups, at least one water-soluble polymeric block, and at least one polymerizable group, and methods of preparation and use thereof are described. The macromers are preferably polymerized using free radical initiators under the influence of long wavelength ultraviolet light or visible light excitation. Biodegradation occurs at the linkages within the extension oligomers and results in fragments which are non-toxic and easily removed from the body. The macromers can be used to encapsulate cells, deliver prophylactic, therapeutic or diagnostic agents in a controlled manner, plug leaks in tissue, prevent adhesion formation after surgical procedures, temporarily protect or separate tissue surfaces, and adhere or seal tissues together.
    Type: Grant
    Filed: January 7, 2000
    Date of Patent: January 23, 2001
    Assignee: Focal, Inc
    Inventors: Amarpreet S. Sawhney, Peter K. Jarrett, Arthur J. Coury, Ronald S. Rudowsky, Michelle D. Powell, Luis Z. Avila, David J. Enscore, Stephen D. Goodrich, William C. Nason, Fei Yao, Douglas Weaver, Shikha P. Barman
  • Polymerizable biodegradable polymers including carbonate or dioxanone linkages
    Patent number: 6083524
    Abstract: Water-soluble macromers including at least one hydrolysable linkage formed from carbonate or dioxanone groups, at least one water-soluble polymeric block, and at least one polymerizable group, and methods of preparation and use thereof are described. The macromers are preferably polymerized using free radical initiators under the influence of long wavelength ultraviolet light or visible light excitation. Biodegradation occurs at the linkages within the extension oligomers and results in fragments which are non-toxic and easily removed from the body. The macromers can be used to encapsulate cells, deliver prophylactic, therapeutic or diagnostic agents in a controlled manner, plug leaks in tissue, prevent adhesion formation after surgical procedures, temporarily protect or separate tissue surfaces, and adhere or seal tissues together.
    Type: Grant
    Filed: October 6, 1997
    Date of Patent: July 4, 2000
    Assignee: Focal, Inc.
    Inventors: Amarpreet S. Sawhney, David J. Enscore, Stephen D. Goodrich, William C. Nason, Fei Yao, Douglas Weaver, Peter K. Jarrett, Arthur J. Coury, Ronald S. Rudowsky, Michelle D. Powell, Luis Z. Avila, Shikha P. Barman
  • Thrombolysis predictive instrument
    Patent number: 4998535
    Abstract: An instrument for predicting the benefit of using thrombolytic therapy to treat a patient with a heart condition including a first input port for receiving inputs derived from electrocardiograph measurements of the patient's condition, and a processor for computing an estimate of said benefit based upon the electrocardiograph-derived inputs.
    Type: Grant
    Filed: September 5, 1989
    Date of Patent: March 12, 1991
    Assignees: Univ. of Washington New England Medical Center Hospitals, Inc., Duke University
    Inventors: Harry P. Selker, Galen S. Wagner, W. Douglas Weaver, Robert M. Califf