Patents by Inventor Bernard Belleau

Bernard Belleau 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).

  • Heteroanthracycline antitumor analogs
    Patent number: 5348946
    Abstract: Heterocyclic antitumor compounds are described, which are useful in the treatment of cancer and tumors in vitro, such as breast cancer, leukemia, lung cancer, colon cancer, ovarian cancer, renal cancer, CNS cancer and melanoma. Pharmaceutical compositions and method of preparing the compounds are also described.
    Type: Grant
    Filed: August 28, 1991
    Date of Patent: September 20, 1994
    Assignee: Biochem Immunosystems, Inc.
    Inventors: Giorgio G. Attardo, Bernard Belleau, deceased
  • 4-(purinyl bases)-substituted-1,3-dioxlanes
    Patent number: 5270315
    Abstract: There is provided novel 2-substituted-4-substituted-1,3-dioxolanes which are particularly useful as antiviral agents.
    Type: Grant
    Filed: March 7, 1991
    Date of Patent: December 14, 1993
    Assignee: BioChem Pharma Inc.
    Inventors: Bernard Belleau, Dilip Dixit, Nghe Nguyen-Ba
  • 2-substituted-5-substituted-1,3-oxathiolanes with antiviral properties
    Patent number: 5151426
    Abstract: Methods and compositions for preventing or treating human immunodeficiency virus (HIV) infections characterized by 2-substituted-5-substituted-1,3-oxathiolanes.
    Type: Grant
    Filed: June 17, 1991
    Date of Patent: September 29, 1992
    Assignee: BioChem Pharma Inc.
    Inventors: Bernard Belleau, Nghe Nguyen-Ba
  • Thioacylating reagents
    Patent number: 5138061
    Abstract: Thioacylating reagents are provided for the introduction of thioamide bonds into growing peptides represented by the structure: ##STR1## where the substituents are disclosed herein. Intermediate precursors for preparing these thioacylating reagents are also provided. A process for preparing the thioacylating reagents and the intermediate precursors is further provided.
    Type: Grant
    Filed: August 4, 1989
    Date of Patent: August 11, 1992
    Assignee: BioChem Pharma Inc.
    Inventors: Bernard Belleau, deceased, Denis Brillon, Gilles Sauve, Boulos Zacharie
  • 2-substituted-5-substituted-1,3-oxathiolanes with antiviral properties
    Patent number: 5047407
    Abstract: Methods and compositions for preventing or treating human immunodeficiency virus (HIV) infections characterized by 2-substituted-5-substituted-1,3-oxathiolanes.
    Type: Grant
    Filed: February 8, 1989
    Date of Patent: September 10, 1991
    Assignee: IAF BioChem International, Inc.
    Inventors: Bernard Belleau, Nghe Nguyen-Ba
  • 4-(nucleoside base)-substituted-1,3-dioxolanes useful for treatment of retroviral infections
    Patent number: 5041449
    Abstract: There are provided novel 2-substituted-4-substituted-1,3-dioxolanes which are particularly useful as antiviral agents.
    Type: Grant
    Filed: June 29, 1990
    Date of Patent: August 20, 1991
    Assignee: IAF BioChem International, Inc.
    Inventors: Bernard Belleau, Dilip Dixit, Nghe Nguyen-Ba
  • Synthesis of cis-1,4-cyclohexadiene dioxide
    Patent number: 4003922
    Abstract: Cis-1,4-cyclohexadiene dioxide is a valuable intermediate useful in the preparation of totally synthetic aminoglycosides. An example of such an aminoglycoside is 5-deoxykanamycin A.
    Type: Grant
    Filed: February 10, 1976
    Date of Patent: January 18, 1977
    Assignee: Bristol-Myers Company
    Inventors: Gerry Kavadias, Bernard Belleau