Patents by Inventor Dale A. Stringfellow

Dale A. Stringfellow 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).

  • Method for treating cancer with 6-aryl pyrimidine compounds
    Patent number: 5554617
    Abstract: A method for altering the immunoregulatory system of humans and animals by administering a compound of the formula: ##STR1## wherein X.sub.3 is equal to X, X.sub.4, or X.sub.5 wherein X.sub.4 is fluoro, chloro, bromo or iodo, and X.sub.5 is mono-, di- or trihalomethyl, mono-, di or trifluoroethyl, perfluoropropyl, and wherein X is alkyl of from 1 to 3 carbon atoms, inclusive, 2-propynyl and 2-propenyl, and X.sub.1 is as defined in the specification.
    Type: Grant
    Filed: April 7, 1995
    Date of Patent: September 10, 1996
    Assignee: The Upjohn Company
    Inventors: Dale A. Stringfellow, Patricia E. Fast
  • 6-aryl pyrimidine compounds and method for treating viral infections and inducing interferon production
    Patent number: 5434157
    Abstract: 6-Aryl pyrimidinol compounds, also can be named 6-aryl pyrimidinone or 6-aryl-isocytosine novel compounds, also novel and old compounds useful for treating viral infections and inducing interferon production. Dosage forms and method of treatment are disclosed.
    Type: Grant
    Filed: January 21, 1993
    Date of Patent: July 18, 1995
    Assignee: The Upjohn Company
    Inventors: Wendell Wierenga, Harvey I. Skulnick, Dale A. Stringfellow
  • Method for treating bacterial and protozoal infections
    Patent number: 5002951
    Abstract: A method for treating bacterial or protozoal humans and animals by administering a 6-aryl pyrimidine compound or a salt thereof in association with a pharmaceutical carrier.
    Type: Grant
    Filed: May 4, 1987
    Date of Patent: March 26, 1991
    Assignee: The Upjohn Company
    Inventors: Dale A. Stringfellow, Patricia E. Fast
  • Method for treating rejection of organ or skin grafts with 6-aryl pyrimidine compounds
    Patent number: 4665077
    Abstract: A method for treating rejection of organ or skin grafts in humans and animals by administering 2-amino-6-aryl-5-substituted pyrimidines.
    Type: Grant
    Filed: July 12, 1984
    Date of Patent: May 12, 1987
    Assignee: The Upjohn Company
    Inventors: Dale A. Stringfellow, Patricia E. Fast
  • 6-aryl pyrimidines for treating aplastic anemia
    Patent number: 4619933
    Abstract: A method for treating aplastic anemia by systemic administration of a 6-aryl pyrimidine compound or a pharmaceutically acceptable salt thereof in association with a pharmaceutical carrier to a human or animal having aplastic anemia.
    Type: Grant
    Filed: August 25, 1983
    Date of Patent: October 28, 1986
    Assignee: The Upjohn Company
    Inventors: Dale A. Stringfellow, Patricia E. Fast
  • Method for immunoregulation with 6-aryl pyrimidine compounds
    Patent number: 4543248
    Abstract: A method for altering the immunoregulatory system of humans and animals by administering a 6 aryl pyrimidine compound or a salt thereof in association with a pharmaceutical carrier.
    Type: Grant
    Filed: April 8, 1982
    Date of Patent: September 24, 1985
    Assignee: The Upjohn Company
    Inventors: Dale A. Stringfellow, Patricia E. Fast
  • Restoration of interferon response
    Patent number: 4092425
    Abstract: The present invention provides a method for treatment of hyporeactivity to interferon induction in interferon producing animals or animal cells which comprises administering a hyporeactive interferon stimulating prostaglandin (HIS-PG) to an interferon producing animal or animal cells having a hyporeactive (decreased) interferon response. Hyporeactive interferon stimulating prostaglandins (HIS-PG) refers to those prostaglandin-type compounds which are useful in alleviating the decreased ability of interferon producing animals or animal cells to produce interferon following administration of repeated doses of an interferon inducer or as a consequence of viral infection or neoplasia.
    Type: Grant
    Filed: August 8, 1977
    Date of Patent: May 30, 1978
    Assignee: The Upjohn Company
    Inventor: Dale A. Stringfellow