Patents by Inventor William F. Rencher

William F. Rencher 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).

  • Patent number: 6824762
    Abstract: Aqueous nasal spray compositions comprising a medicament and an aqueous carrier comprising water soluble polymers selected from the group consisting of polyvinylpyrrolidone and mixtures thereof.
    Type: Grant
    Filed: August 28, 2001
    Date of Patent: November 30, 2004
    Assignee: Schering-Plough Healthcare Products Inc.
    Inventors: Joseph A. Haslwanter, William F. Rencher
  • Patent number: 6649175
    Abstract: A skin barrier lotion for protection against contact with irritants comprises: about 5 to 15 percent by weight of a long-chain fatty acid; about 1 to 5 percent by weight of a long-chain fatty alcohol; about 1 to 10 percent by weight of a hydrocarbon oil; about 1 to 30 percent by weight of a silicone skin protectant; about 0.5 to about 5 percent by weight of an alkanolamine; about 0.5 to about 5 percent by weight of a humectant; about 0.5 to about 10 percent by weight of an inorganic skin protectant; about 0.5 to 15 weight percent of a preservative; and about 50 to 90 percent by weight water. Optionally, the lotion will also contain up to about 5 percent by weight of a fragrance, odor neutralizer or a mixture thereof.
    Type: Grant
    Filed: May 3, 1999
    Date of Patent: November 18, 2003
    Assignee: Schering-Plough HealthCare Products, Inc.
    Inventors: Joseph A. Haslwanter, William F. Rencher
  • Publication number: 20020172644
    Abstract: Aqueous nasal spray compositions comprising a medicament and an aqueous carrier comprising water soluble polymers selected from the group consisting of polyvinylpyrrolidone and mixtures thereof.
    Type: Application
    Filed: August 28, 2001
    Publication date: November 21, 2002
    Inventors: Joseph A. Haslwanter, William F. Rencher
  • Publication number: 20020090386
    Abstract: A skin barrier lotion for protection against contact with irritants comprises: about 5 to 15 percent by weight of a long-chain fatty acid; about 1 to 5 percent by weight of a long-chain fatty alcohol; about 1 to 10 percent by weight of a hydrocarbon oil; about 1 to 30 percent by weight of a silicone skin protectant; about 0.5 to about 5 percent by weight of an alkanolamine; about 0.5 to about 5 percent by weight of a humectant; about 0.5 to about 10 percent by weight of an inorganic skin protectant; about 0.5 to 15 weight percent of a preservative; and about 50 to 90 percent by weight water. Optionally, the lotion will also contain up to about 5 percent by weight of a fragrance, odor neutralizer or a mixture thereof.
    Type: Application
    Filed: January 10, 2002
    Publication date: July 11, 2002
    Inventors: Joseph A. Haslwanter, William F. Rencher
  • Patent number: 6316483
    Abstract: Aqueous nasal spray compositions comprising a medicament and an aqueous carrier comprising water soluble polymers selected from the group consisting of polyvinylpyrrolidone and mixtures thereof.
    Type: Grant
    Filed: November 5, 1999
    Date of Patent: November 13, 2001
    Assignee: Schering Corporation
    Inventors: Joseph A. Haslwanter, William F. Rencher
  • Patent number: 5897858
    Abstract: Aqueous nasal spray compositions containing:0.001-2% by weight/volume of a medicament selected from the group consisting of chlorpheniramine maleate, oxymetazoline hydrochloride and mixtures thereof;0.50 to 15.00% by weight/volume of a water soluble polymer selected from the group consisting of polyvinylpyrrolidone having an average molecular weight of about 10,000 to 360,000 and mixtures thereof;2.5 to 10.00% by weight/volume of polyethylene glycol;1.00 to 10.00% by weight/volume of a moisturizing agent other than polyethylene glycol;0.01 to 0.05% by weight/volume of disodium edetate;0.001 to 0.3% by weight/volume of an antimicrobial preservative;0.20 to 5.00% by weight/volume of an aromatic alcohol;a sufficient amount of a pharmaceutically acceptable buffer to maintain the pH of the composition within the range of about 4.0 to 8.0; andQS water.
    Type: Grant
    Filed: November 4, 1997
    Date of Patent: April 27, 1999
    Assignee: Schering-Plough Healthcare Products, Inc.
    Inventors: Joseph A. Haslwanter, William F. Rencher
  • Patent number: 5462749
    Abstract: Bioadhesive pharmaceutical carrier consisting essentially of a polymer blend of sodium carboxymethyl cellulose and xanthan gum or sodium alginate. The invention also provides for a method of control releasing a pharmaceutical active comprising incorporating an active into the bioadhesive pharmaceutical carrier. The invention is particularly adaptable for oral use and teething gels.
    Type: Grant
    Filed: April 26, 1994
    Date of Patent: October 31, 1995
    Assignee: McNell-PPC, Inc.
    Inventor: William F. Rencher
  • Patent number: 5451409
    Abstract: The present invention is directed to a novel sustained release matrix and oral dosage form comprising a homogeneous matrix formed from a wet granulation containing an effective amount of a medicament and a polymer blend of hydroxypropyl cellulose and hydroxyethyl cellulose. The present invention also discloses a novel process for making a sustained release oral dosage form comprising wet granulating a medicament with a polymer blend of hydroxypropyl cellulose and hydroxyethyl cellulose to form a homogeneous matrix, wherein the polymer blend is provided in an amount effective to control the release of said medicament, then forming the homogenous matrix into a solid oral dosage form.
    Type: Grant
    Filed: November 22, 1993
    Date of Patent: September 19, 1995
    Inventors: William F. Rencher, Suresh Babu, Shankar Musunuri, Christopher H. Day, James Schwing
  • Patent number: 5314915
    Abstract: Bioadhesive pharmaceutical carrier consisting essentially of a polymer blend of sodium carboxymethyl cellulose and xanthan gum or sodium alginate. The invention also provides for a method of control releasing a pharmaceutical active comprising incorporating an active into the bioadhesive pharmaceutical carrier. The invention is particularly adaptable for oral use and teething gels.
    Type: Grant
    Filed: December 16, 1992
    Date of Patent: May 24, 1994
    Assignee: McNeil-PPC, Inc.
    Inventor: William F. Rencher
  • Patent number: 5192802
    Abstract: Bioadhesive pharmaceutical carrier consisting essentially of a polymer blend of sodium carboxymethyl cellulose and xanthan gum or sodium alginate. The invention also provides for a method of control releasing a pharmaceutical active comprising incorporating an active into the bioadhesive pharmaceutical carrier. The invention is particularly adaptable for oral use and teething gels.
    Type: Grant
    Filed: September 25, 1991
    Date of Patent: March 9, 1993
    Assignee: McNeil-PPC, Inc.
    Inventor: William F. Rencher