Patents by Inventor Arun B. Barua

Arun B. Barua 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).

  • Retinoic acid glucuronide preparations for application to the skin
    Patent number: 5075340
    Abstract: A method and preparation are described for treating human skin with retinoic acid glucuronide (RAG) in a topical carrier. For treatment of acne or wrinkled skin, RAG can be applied in an effective amount which is nonirritating to the skin. Retinoid dermatitis, an objectionable side effect of topical application of retinoid compounds, can thereby be avoided.
    Type: Grant
    Filed: August 21, 1990
    Date of Patent: December 24, 1991
    Assignee: Iowa State University Research Foundation
    Inventors: Arun B. Barua, Desiree Gunning, James A. Olson
  • Non-teratogenic vitamin A preparation for women of child-bearing age
    Patent number: 5061723
    Abstract: For treatment of acne the glucuronide of retinoic acid (retinoyl .beta.-glucuronide) is orally administered to women of child-bearing age who are capable of conception. This therapy is safer than the oral administration of retinoic acid because retinoic acid glucuronide is essentially non-teratogenic at dose levels effective for the acne treatment. The retinoic acid glucuronide can be in all-trans or 13-cis form.
    Type: Grant
    Filed: May 22, 1989
    Date of Patent: October 29, 1991
    Assignee: Iowa State University Research Foundation, Inc.
    Inventors: Arun B. Barua, Desiree Gunning, James A. Olson
  • Method of producing water-soluble glucuronic acid derivatives of vitamin A
    Patent number: 4855463
    Abstract: Water soluble glucuronic acid derivatives of vitamin A, including retinoyl .beta.-glucuronide and retinyl .beta.-glucuronide, having in vivo activity comparable to retinoic acid and retinol and methods of their preparation are disclosed.
    Type: Grant
    Filed: December 15, 1986
    Date of Patent: August 8, 1989
    Assignee: Iowa State University Research Foundation, Inc.
    Inventors: Arun B. Barua, James A. Olson
  • 15-Fluoro-retinoid compounds
    Patent number: 4473503
    Abstract: This invention relates to the 15-fluoro-retinoid compounds which provide vitamin A activity with reduced liver storage. A preferred compound is retinoyl fluoride.
    Type: Grant
    Filed: November 23, 1982
    Date of Patent: September 25, 1984
    Assignee: Iowa State University Research Foundation, Inc.
    Inventors: Arun B. Barua, James A. Olson