Patents by Inventor Betty J. Dudley

Betty J. Dudley 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).

  • Nonthrombogenic articles and method of preparation
    Patent number: 4367749
    Abstract: The disclosure is of articles having reduced thrombogenicity and which are useful for purposes requiring their contact with whole blood. The articles comprise solid, polymeric resin substrates to which there is fixed a compound of the formula: ##STR1## wherein R is alkyl of 12 to 18 carbon atoms, inclusive, R.sub.1 is lower alkyl and A is the negative ion of a soluble salt of heparin. The articles advantageously exhibit low toxicity and excellent blood compatibility when used for purposes which bring them into contact with whole blood for prolonged periods of time.
    Type: Grant
    Filed: December 3, 1980
    Date of Patent: January 11, 1983
    Assignee: Becton, Dickinson & Company
    Inventors: Betty J. Dudley, deceased, Joel L. Williams
  • Nonthrombogenic articles and method of preparation
    Patent number: 4349467
    Abstract: The disclosure is of articles having reduced thrombogenicity and which are useful for purposes requiring their contact with whole blood. The articles comprise solid, polymeric resin substrates to which there is fixed a compound of the formula: ##STR1## wherein R.sub.1 is alkyl of 12 to 18 carbon atoms, inclusive; R.sub.2, R.sub.3 and R.sub.4 are each independently selected from the group consisting of hydrogen and lower alkyl; X represents a negative monovalent ion such as halogen; and A represents the residue of a salt of heparin after removal of the positive ion. The articles advantageously exhibit low toxicity and excellent blood compatibility when used for purposes which bring them into contact with whole blood for prolonged periods of time.
    Type: Grant
    Filed: September 17, 1979
    Date of Patent: September 14, 1982
    Inventors: Joel L. Williams, Betty J. Dudley, deceased, by Kenneth H. Dudley, executor
  • Nonthrombogenic articles and method of preparation
    Patent number: 4302368
    Abstract: The disclosure is of articles having reduced thrombogenicity and which are useful for purposes requiring their contact with whole blood. The articles comprise solid, polymeric resin substrates to which there is fixed a compound of the formula: ##STR1## wherein R is alkyl of 12 to 18 carbon atoms, inclusive, R.sub.1 is lower alkyl and A is the negative ion of a soluble salt of heparin. The articles advantageously exhibit low toxicity and excellent blood compatibility when used for purposes which bring them into contact with whole blood for prolonged periods of time.
    Type: Grant
    Filed: September 17, 1979
    Date of Patent: November 24, 1981
    Assignee: Becton, Dickinson and Company
    Inventors: Betty J. Dudley, deceased, Joel L. Williams
  • Non-thrombogenic articles
    Patent number: 4116898
    Abstract: The disclosure is of articles having reduced thrombogenicity and which are useful for purposes requiring their contact with whole blood. The articles comprise solid, polymeric resin substrates to which there is fixed a compound of the formula: ##STR1## wherein A represents the residue of sodium heparin after removal of the sodium ion. The articles advantageously exhibit low toxicity and excellent blood compatibility when used for purposes which bring them into contact with whole blood for prolonged periods of time.
    Type: Grant
    Filed: January 31, 1977
    Date of Patent: September 26, 1978
    Assignee: Becton, Dickinson and Company
    Inventors: Betty J. Dudley, Joel L. Williams