Patents by Inventor Thomas W. Leonard

Thomas W. Leonard 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: 20020151530
    Abstract: The present invention combines the administration of estrogens with the administration of non-aromatizing androgens to treat hormonal deficiencies in women undergoing estrogen replacement therapy.
    Type: Application
    Filed: December 20, 2001
    Publication date: October 17, 2002
    Inventors: Thomas W. Leonard, R. Forrest Waldon
  • Publication number: 20020107230
    Abstract: A pharmaceutical composition for the treatment of sexual dysfunction, particularly post-menopausal females, is provided. The composition includes a therapeutically effective amount of an estrogenic compound, androgenic compound, vasodilation compound, and a pharmaceutically acceptable carrier.
    Type: Application
    Filed: December 20, 2001
    Publication date: August 8, 2002
    Inventors: R. Forrest Waldon, Thomas W. Leonard
  • Patent number: 5616588
    Abstract: Disclosed herein is an aqueous, injectable rapamycin solution comprising 40 to 75 volume percent of a concentrate solution of rapamycin in propylene glycol, at concentrations of rapamycin ranging from 0.25 mg/ml to 8 mg/ml, in combination with a diluent solution comprising water, wherein the diluent comprises 60 to 25 volume percent of the combined solution and the concentration of rapamycin in the combined solution ranges from 0.1 mg/ml to 4 mg/ml.
    Type: Grant
    Filed: September 12, 1994
    Date of Patent: April 1, 1997
    Assignee: American Home Products Corporation
    Inventors: Robert P. Waranis, Thomas W. Leonard
  • Patent number: 5559121
    Abstract: The present invention comprises oral rapamycin formulations which contain, per 100 ml of the formulation, from about 0.01 to about 10.0 grams per 100 ml of rapamycin, from about 0.1 to about 10 ml of surfactant, from about 0.1 to about 25 ml of N,N-dimethylacetamide, and from about 65 to about 99.8 ml of a lecithin or phospholipid solution.
    Type: Grant
    Filed: May 23, 1995
    Date of Patent: September 24, 1996
    Assignee: American Home Products Corporation
    Inventors: Maureen M. Harrison, Christian L. Ofslager, Robert P. Waranis, Thomas W. Leonard
  • Patent number: 5538737
    Abstract: The present invention provides pharmaceutical capsule compositions for the oral administration of an H.sub.2 -antagonist. The composition includes a capsule containing an emulsion having a water portion and an oil portion. A pharmaceutically acceptable salt of an H.sub.2 -antagonist is dissolved in the water portion. The composition delivers a therapeutically effective amount of the H.sub.2 -antagonist to a patient in need thereof. The present invention also provides methods of making the capsule composition.
    Type: Grant
    Filed: November 30, 1994
    Date of Patent: July 23, 1996
    Assignee: Applied Analytical Industries, Inc.
    Inventors: Thomas W. Leonard, David P. Hause, Frederick D. Sancilio, James Swarbrick, Edward S. Wilson
  • Patent number: 5536729
    Abstract: The present invention provides novel oral rapamycin formulations which have, per 100 ml of the formulation, from about 0.01 grams to about 5.0 grams of rapamycin, from about 0.05% to about 10% by volume of surfactant, and from about 75% to about 99.95% by volume of a solution of phospholipid or lecithin in which the phospholipid or lecithin therein is 40% to 75% by weight.
    Type: Grant
    Filed: September 9, 1994
    Date of Patent: July 16, 1996
    Assignee: American Home Products Corporation
    Inventors: Robert P. Waranis, Thomas W. Leonard
  • Patent number: 5530006
    Abstract: Disclosed herein is an aqueous, injectable rapamycin solution comprising 0.1 to 10 percent of a concentrate solution of rapamycin in N,N-dimethylacetamide, at concentrations of rapamycin ranging from 0.25 mg/ml to 100 mg/ml, in combination with a diluent solution consisting of 0.1 to 10 weight percent of one or more polyoxyethylene sorbitan esters, 10 to 60 weight percent of either polyethylene glycol 200 or 300 or both and 30 to 90 volume percent water, wherein the concentration of rapamycin in he combined solution ranges from 0.05 mg/ml to 5.0 mg/ml. Also disclosed is an aqueous, injectable solution of rapamycin, said solution comprising rapamycin in 0.1 to 10 weight percent N,N-dimethylacetamide, 0.09 to 7.5 weight percent of one or more polyoxyethylene sorbitan esters, 9 to 60 weight percent of either polyethylene glycol 200 or 300 or both and 30 to 90 volume percent of water, wherein the concentration of rapamycin in the solution ranges from 0.05 mg/ml to 5.0 mg/ml.
    Type: Grant
    Filed: March 7, 1994
    Date of Patent: June 25, 1996
    Assignee: American Home Products Corporation
    Inventors: Robert P. Waranis, Maureen M. Harrison, Thomas W. Leonard, Robin P. Enever
  • Patent number: 5516770
    Abstract: Disclosed herein is an aqueous, injectable rapamycin solution, obtained by a process consisting of mixing 5 to 30 volume percent of a concentrate solution of rapamycin in propylene glycol, at concentrations of rapamycin ranging from 0.5 mg/ml to 10 mg/ml, with a diluent solution consisting of 0.1 to 10 weight percent of one or more polyoxyethylene sorbitan esters, 10 to 60 weight percent of polyethylene glycol 200, 300 or 400 or a combination thereof and 30 to 89.9 volume percent water, wherein the concentration of rapamycin in the injectable solution ranges from 0.025 mg/ml to 3 mg/ml.
    Type: Grant
    Filed: September 22, 1994
    Date of Patent: May 14, 1996
    Assignee: American Home Products Corporation
    Inventors: Robert P. Waranis, Thomas W. Leonard
  • 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
  • Patent number: 4888362
    Abstract: Disclosed herein are compositions and methods for enhancing the transdermal delivery of physiologically active agents across mammalian skin or membranes and which comprise a percutaneous transfer enhancing amount of eugenol and a drug.
    Type: Grant
    Filed: January 16, 1987
    Date of Patent: December 19, 1989
    Assignee: American Home Products Corp.
    Inventors: Thomas W. Leonard, Karol K. Mikula, Marcia S. Schlesinger
  • Patent number: 4888360
    Abstract: Disclosed herein are compositions and methods for enhancing the transdermal delivery of physiologically active agents across mammalian skin or membranes and which comprise a percutaneous transfer enhancing amount of 1-carvone and a drug.
    Type: Grant
    Filed: January 16, 1987
    Date of Patent: December 19, 1989
    Assignee: American Home Products Corporation
    Inventors: Thomas W. Leonard, Karol K. Mikula, Marcia S. Schlesinger
  • Patent number: 4873266
    Abstract: Disclosed herein are compositions and methods for enhancing the transdermal delivery of physiologically active agents across mammalian skin or membranes and which comprise a percutaneous transfer enhancing amount of 1-menthone and a drug.
    Type: Grant
    Filed: January 16, 1987
    Date of Patent: October 10, 1989
    Assignee: American Home Products Corp.
    Inventors: Thomas W. Leonard, Karol Kay Mikula, Marcia S. Schlesinger
  • Patent number: 4820525
    Abstract: The invention provides a transdermal/transmucosal pharmaceutical delivery system having an improved drug reservoir comprising a thin layer of foamed material made from high molecular weight polyethylene, the foamed material having a void volume of at lesat 20% per unit of surface area and a narrow pore size variation per unit of surface area.
    Type: Grant
    Filed: September 17, 1987
    Date of Patent: April 11, 1989
    Assignee: American Home Products Corporation (Del.)
    Inventors: Thomas W. Leonard, Robin P. Enever, Karol K. Mikula
  • 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
  • Patent number: 4789660
    Abstract: A therapeutic composition for trans-mucosal administration in the treatment of diabetes including insulin, as an adjuvant a water-soluble fusidic acid salt and as a co-adjuvant methylparaben and/or propylparaben.
    Type: Grant
    Filed: September 10, 1987
    Date of Patent: December 6, 1988
    Assignee: American Home Products Corporation
    Inventors: Robin P. Enever, Thomas W. Leonard, Karol K. Mikula
  • 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