Patents by Inventor Ronald N. Warner

Ronald N. Warner 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).

  • Formulations providing three distinct releases
    Patent number: 4904476
    Abstract: A therapeutic preparation consisting of three groups of spheroids containing an active medicinal substance. The first group of spheroids is uncoated and rapidly disintegrates upon ingestion to release an initial dose of medicinal substance a second group of spheroids is coated with a pH sensitive coat to provide a second dose and a third group of spheroids is coated with a pH independent coat to provide a third dose. A powder blend of active medicinal substance may be substituted for the first group of uncoated spheroids. The therapeutic preparation may be utilized as a mixture of groups of spheroids in a capsule.
    Type: Grant
    Filed: September 30, 1988
    Date of Patent: February 27, 1990
    Assignee: American Home Products Corporation
    Inventors: Atul M. Mehta, Lizbeth A. Bachand, Thomas W. Leonard, Ronald N. Warner
  • Formulations for hygroscopic pharmaceuticals
    Patent number: 4861591
    Abstract: There are provided pharmaceutical dosage forms for oral administration comprising a gelatin capsule encapsulating an admixture of at least one solid hygroscopic medicinal substance, which would otherwise disturb the gastric tract balance, with an at least partially hydrogenated and/or solidified vegetable oil.
    Type: Grant
    Filed: February 7, 1989
    Date of Patent: August 29, 1989
    Assignee: American Home Products Corporation
    Inventors: Richard P. Weierstall, Robin P. Enever, Kathleen L. Brunelle, Gerard F. Thone, Ronald N. Warner
  • Formulations providing three distinct releases
    Patent number: 4794001
    Abstract: A therapeutic preparation consisting of three groups of spheroids containing an active medicinal substance. The first group of spheroids is uncoated and rapidly disintegrates upon ingestion to release an initial dose of medicinal substance a second group of spheroids is coated with a pH sensitive coat to provide a second dose and a third group of spheroids is coated with a pH independent coat to provide a third dose. A powder blend of active medicinal substance may be substituted for the first group of uncoated spheroids.The therapeutic preparation may be utilized as a mixture of groups of spheroids in a capsule.
    Type: Grant
    Filed: September 24, 1987
    Date of Patent: December 27, 1988
    Assignee: American Home Products Corporation
    Inventors: Atul M. Mehta, Lizbeth A. Bachand, Thomas W. Leonard, Ronald N. Warner
  • Calcium supplement compressed tablets
    Patent number: 4781925
    Abstract: A calcium supplement compressed tablet containing at least about 80% by weight of tricalcium phosphate having incorporated therein as a disintegrant croscarmellose sodium and about 50% to 100% by weight based on the croscarmellose sodium of sodium lauryl sulfate.
    Type: Grant
    Filed: March 6, 1986
    Date of Patent: November 1, 1988
    Assignee: American Home Products Corporation
    Inventors: John J. Michelucci, Deborah M. Sherman, Ronald N. Warner
  • Formulations providing three distinct releases
    Patent number: 4728512
    Abstract: A therapeutic preparation consisting of three groups of spheroids containing an active medicinal substance. The first group of spheroids is uncoated and rapidly disintegrates upon ingestion to release an initial dose of medicinal substance a second group of spheroids is coated with a pH sensitive coat to provide a second dose and a third group of spheroids is coated with a pH independent coat to provide a third dose. A powder blend of active medicinal substance may be substituted for the first group of uncoated spheroids.The therapeutic preparation may be utilized as a mixture of groups of spheroids in a capsule.
    Type: Grant
    Filed: March 4, 1986
    Date of Patent: March 1, 1988
    Assignee: American Home Products Corporation
    Inventors: Atul M. Mehta, Lizbeth A. Bachand, Thomas W. Leonard, Ronald N. Warner