Patents by Inventor Robert Tam

Robert Tam 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).

  • Publication number: 20030207826
    Abstract: Nucleosides and other compounds to selectively modulate Th1 and Th2 responses relative to each other in the treatment of disease. In one aspect of the invention, administration of a nucleoside or other compound reduces the dosage at which a primary drug is administered. In another aspect of the invention, an abnormality reflected in increased response in one group of cytokines is treated by administering a nucleoside or other compound that increases response in another group of cytokines. In yet another aspect of the invention, a patient is prophylactically treated by administering a nucleoside or other compound that selectively reduces Th1 activity without significantly reducing Th2 activity. In yet another, aspect of the invention, a nucleoside or other compound is administered to a patient at a dose that reduces the patient's GTP pool to a degree that selectively reduces one of the Th1 or Th2 responses without significantly reducing the other response.
    Type: Application
    Filed: April 30, 2003
    Publication date: November 6, 2003
    Inventors: Robert Tam, Guangyi Wang, Devron Averett, Kandasamy Ramasamy
  • Patent number: 6642206
    Abstract: Novel monocyclic L-Nucleoside compounds have the general formula Embodiments of these compounds are contemplated to be useful in treating a wide variety of diseases including infections, infestations, neoplasms, and autoimmune diseases. Viewed in terms of mechanism, embodiments of the novel compounds show immunomodulatory activity, and are expected to be useful in modulating the cytokine pattern, including modulation of Th1 and Th2 response.
    Type: Grant
    Filed: April 9, 2002
    Date of Patent: November 4, 2003
    Assignee: ICN Pharmaceuticals, Inc.
    Inventors: Kanda Ramasamy, Robert Tam, Devron Averett
  • Patent number: 6573248
    Abstract: Novel monocyclic L-Nucleoside compounds have the general formula Embodiments of these compounds are contemplated to be useful in treating a wide variety of diseases including infections, infestations, neoplasms, and autoimmune diseases. Viewed in terms of mechanism, embodiments of the novel compounds show immunomodulatory activity, and are expected to be useful in modulating the cytokine pattern, including modulation of Th1 and Th2 response.
    Type: Grant
    Filed: December 31, 2001
    Date of Patent: June 3, 2003
    Assignee: ICN Pharmaceuticals, Inc.
    Inventors: Kandasamy Ramasamy, Robert Tam, Devron Averett
  • Patent number: 6552183
    Abstract: Novel monocyclic L-Nucleoside compounds have the general formula Embodiments of these compounds are contemplated to be useful in treating a wide variety of diseases including infections, infestations, neoplasms, and autoimmune diseases. Viewed in terms of mechanism, embodiments of the novel compounds show immunomodulatory activity, and are expected to be useful in modulating the cytokine pattern, including modulation of Th1 and Th2 response.
    Type: Grant
    Filed: August 7, 2000
    Date of Patent: April 22, 2003
    Assignee: ICN Pharmaceuticals, Inc.
    Inventors: Kandasamy Ramasamy, Robert Tam, Devron Averett
  • Patent number: 6518253
    Abstract: A 1-(&bgr;-L-ribofuranosyl)-1,2,4-triazole-3-carboxamide is administered in a method of treatment of a viral infection in a patient, including HIV infection, HCV infection, or BHV infection.
    Type: Grant
    Filed: December 23, 1999
    Date of Patent: February 11, 2003
    Inventor: Robert Tam
  • Publication number: 20030018186
    Abstract: Novel monocyclic L-Nucleoside compounds have the general formula 1
    Type: Application
    Filed: April 9, 2002
    Publication date: January 23, 2003
    Inventors: Kanda Ramasamy, Robert Tam, Devron Averett
  • Patent number: 6509320
    Abstract: Novel purine L-nucleoside compounds are disclosed, in which both the purine rings and the sugar are either modified, functionalized or both. The novel compounds or pharmaceutically acceptable esters or salts thereof may be used in pharmaceutical compositions, and such compositions may be used to treat an infection, an infestation, a neoplasm, or an autoimmune disease. The novel compounds may also be used to modulate aspects of the immune system, including modulation of Th1 and Th2.
    Type: Grant
    Filed: June 15, 2000
    Date of Patent: January 21, 2003
    Assignee: ICN Pharmaceuticals, Inc.
    Inventors: Guangyi Wang, Robert Tam, Devron Averett
  • Publication number: 20020187945
    Abstract: The response of an immune system to a challenge is modified by presenting the system with a nucleoside in a concentration selected to have an effect on a B7 marker that is inverse from the effect of the challenge. Contemplated challenges include allergens, neoplasm, virus, bacteria, infestation, and autoimmune reactions. Molecular markers of particular interest are B7-1 and B7-2. Preferred nucleosides are Ribavirin and Ribavirin analogs, especially provided within a concentration range between about 0.2 &mgr;M and about 5 &mgr;M, respectively, in a fluid containing cells expressing the B7 marker.
    Type: Application
    Filed: May 20, 2002
    Publication date: December 12, 2002
    Inventor: Robert Tam
  • Patent number: 6479463
    Abstract: Novel purine L-nucleoside compounds are disclosed, in which both the purine rings and the sugar are either modified, functionalized or both. The novel compounds or pharmaceutically acceptable esters or salts thereof may be used in pharmaceutical compositions, and such compositions may be used to treat an infection, an infestation, a neoplasm, or an autoimmune disease. The novel compounds may also be used to modulate aspects of the immune system, including modulation of Th1 and Th2.
    Type: Grant
    Filed: June 16, 2000
    Date of Patent: November 12, 2002
    Assignee: ICN Pharmaceuticals, Inc.
    Inventors: Guangyi Wang, Robert Tam, Devron Averett
  • Publication number: 20020156030
    Abstract: Novel heterocyclic aromatic compounds are disclosed. The novel compounds or pharmaceutically acceptable esters or salts thereof may be used in pharmaceutical compositions, and such compositions may be used to treat an infection, an infestation, a neoplasm, or an autoimmune disease. The novel compounds may also be used to modulate aspects of the immune system, including modulation of Type 1 and Type 2 activity.
    Type: Application
    Filed: March 11, 2002
    Publication date: October 24, 2002
    Inventors: Kanda Ramasamy, Robert Tam
  • Publication number: 20020137696
    Abstract: Ribavirin is employed in a manner which is effective to modulate lymphokine expression in activated T cells. In particular, Ribavirin is used to suppress Type 2-mediated T cell responses and promote Type 1-mediated T cell response. Thus, instead of administering Ribavirin in its well-recognized role as an anti-viral agent, Ribavirin is herein used in the treatment of imbalances in lymphokine expression. Such imbalances may be found to be concomitants of allergic atopic disorders such as allergic asthma and atopic dermatitis, helminth infection and leishmaniasis, and various primary and secondary immunodeficiencies, which may or may not also be associated with viral infection.
    Type: Application
    Filed: March 8, 2002
    Publication date: September 26, 2002
    Inventor: Robert Tam
  • Patent number: 6455690
    Abstract: Novel nucleosides having the structure of Formula 1 and Formula 2 are contemplated. In one aspect of the invention, controlled release dosage forms are particularly contemplated. Further, alternative routes of administration of the nucleosides having the structure of Formula 1 or Formula 2 are contemplated.
    Type: Grant
    Filed: June 15, 2000
    Date of Patent: September 24, 2002
    Inventors: Robert Tam, Devron Averett, Guangyi Wang, Kanda Ramasamy
  • Patent number: 6455508
    Abstract: Novel heterocyclic aromatic compounds are disclosed. The novel compounds or pharmaceutically acceptable esters or salts thereof may be used in pharmaceutical compositions, and such compositions may be used to treat an infection, an infestation, a neoplasm, or an autoimmune disease. The novel compounds may also be used to modulate aspects of the immune system, including modulation of Type 1 and Type 2 activity.
    Type: Grant
    Filed: October 5, 2000
    Date of Patent: September 24, 2002
    Inventors: Kanda S. Ramasamy, Robert Tam
  • Publication number: 20020132784
    Abstract: Nucleosides and other compounds to selectively modulate Th1 and Th2 responses relative to each other in the treatment of disease. In one aspect of the invention, administration of a nucleoside or other compound reduces the dosage at which a primary drug is administered. In another aspect of the invention, an abnormality reflected in increased response in one group of cytokines is treated by administering a nucleoside or other compound that increases response in another group of cytokines. In yet another aspect of the invention, a patient is prophylactically treated by administering a nucleoside or other compound that selectively reduces Th1 activity without significantly reducing Th2 activity. In yet another aspect of the invention, a nucleoside or other compound is administered to a patient at a dose that reduces the patient's GTP pool to a degree that selectively reduces one of the Th1 or Th2 responses without significantly reducing the other response.
    Type: Application
    Filed: April 29, 2002
    Publication date: September 19, 2002
    Inventors: Robert Tam, Guangyi Wang, Devron Averett, Kandasamy Ramasamy
  • Patent number: 6423695
    Abstract: Nucleosides and other compounds to selectively modulate Th1 and Th2 responses relative to each other in the treatment of disease. In one aspect of the invention, administration of a nucleoside or other compound reduces the dosage at which a primary drug is administered. In another aspect of the invention, an abnormality reflected in increased response in one group of cytokines is treated by administering a nucleoside or other compound that increases response in another group of cytokines. In yet another aspect of the invention, a patient is prophylactically treated by administering a nucleoside or other compound that selectively reduces Th1 activity without significantly reducing Th2 activity. In yet another aspect of the invention, a nucleoside or other compound is administered to a patient at a dose that reduces the patient's GTP pool to a degree that selectively reduces one of the Th1 or Th2 responses without significantly reducing the other response.
    Type: Grant
    Filed: December 20, 1999
    Date of Patent: July 23, 2002
    Assignee: Ribapharm, Inc.
    Inventors: Robert Tam, Guangyi Wang, Devron Averett, Kandasamy Ramasamy
  • Publication number: 20020095033
    Abstract: Novel monocyclic L-Nucleoside compounds have the general formula 1
    Type: Application
    Filed: December 31, 2001
    Publication date: July 18, 2002
    Applicant: ICN Pharmaceuticals, Inc.
    Inventors: Kandasamy Ramasamy, Robert Tam, Devron Averett
  • Publication number: 20020035077
    Abstract: Compositions and methods for pyrrolo[2,3-d]pyrimidine nucleoside analogs having substituents at the C4′ and C5′ positions of the ribofuranose moiety are presented. Contemplated compositions exhibit, among other things, anti-cancer and immunomodulating effects at reduced cytotoxicity.
    Type: Application
    Filed: February 28, 2001
    Publication date: March 21, 2002
    Inventors: Robert Tam, Guangyi Wang, Johnson Lau, Zhi Hong
  • Patent number: 6150337
    Abstract: Ribavirin is employed in a manner which is effective to modulate lymphokine expression in activated T cells. In particular, Ribavirin is used to suppress Type 2-mediated T cell responses and promote Type 1-mediated T cell response. Thus, instead of administering Ribavirin in its well-recognized role as an anti-viral agent, Ribavirin is herein used in the treatment of imbalances in lymphokine expression. Such imbalances may be found to be concomitants of allergic atopic disorders such as allergic asthma and atopic dermatitis, helminth infection and leishmaniasis, and various primary and secondary immunodeficiencies, which may or may not also be associated with viral infection.
    Type: Grant
    Filed: September 18, 1998
    Date of Patent: November 21, 2000
    Assignee: ICN Pharmaceuticals, Inc.
    Inventor: Robert Tam
  • Patent number: 6130326
    Abstract: Novel monocyclic L-Nucleoside compounds have the general formula ##STR1## Embodiments of these compounds are contemplated to be useful in treating a wide variety of diseases including infections, infestations, neoplasms, and autoimmune diseases. Viewed in terms of mechanism, embodiments of the novel compounds show immunomodulatory activity, and are expected to be useful in modulating the cytokine pattern, including modulation of Th1 and Th2 response.
    Type: Grant
    Filed: April 14, 1999
    Date of Patent: October 10, 2000
    Assignee: ICN Pharmaceuticals, Inc.
    Inventors: Kandasamy Ramasamy, Robert Tam, Devron Averett