Patents by Inventor Joel R. Zingerman

Joel R. Zingerman 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).

  • Liquid polymeric compositions for controlled release of bioactive substances
    Publication number: 20040146557
    Abstract: Controlled release of hydrophobic bioactive substances in vivo over an extended time period and without “bursts” of drug release is achieved using a liquid polymeric composition including a polymer such as poly(lactide-co-glycolide) copolymer in a mixture of hydrophilic and lipophilic solvents.
    Type: Application
    Filed: January 8, 2004
    Publication date: July 29, 2004
    Inventors: Rey T. Chern, Joel R. Zingerman
  • Liquid polymeric compositions for controlled release of bioactive substances
    Patent number: 6733767
    Abstract: Controlled release of hydrophobic bioactive substances in vivo over an extended time period and without “bursts” of drug release is achieved using a liquid polymeric composition including a polymer such as poly(lactide-co-glycolide) copolymer in a mixture of hydrophilic and lipophilic solvents.
    Type: Grant
    Filed: March 18, 1999
    Date of Patent: May 11, 2004
    Assignee: Merck & Co., Inc.
    Inventors: Rey T. Chern, Joel R. Zingerman
  • LIQUID POLYMERIC COMPOSITIONS FOR CONTROLLED RELEASE OF BIOACTIVE SUBSTANCES
    Publication number: 20020064547
    Abstract: Controlled release of hydrophobic bioactive substances in vivo over an extended time period and without “bursts” of drug release is achieved using a liquid polymeric composition including a polymer such as poly(lactide-co-glycolide) copolymer in a mixture of hydrophilic and lipophilic solvents.
    Type: Application
    Filed: March 18, 1999
    Publication date: May 30, 2002
    Inventors: REY T. CHERN, JOEL R. ZINGERMAN
  • Sulfurpentafluorophenylpyrazoles for controlling ectoparasitic infestations
    Patent number: 6136838
    Abstract: Sulfurpentafluorophenylpyrazoles of formula I are highly potent against flea and tick infestations in animals. The compounds may be formulated to provide products with long duration of action and low potential for inducing vomition and other adverse reactions in treated animals.
    Type: Grant
    Filed: March 18, 1999
    Date of Patent: October 24, 2000
    Assignee: Merck & Co., Inc.
    Inventors: Rey T. Chern, Jeffrey N. Clark, Marlene D. Drag, Joel R. Zingerman
  • Orifice insert for a ruminal bolus
    Patent number: 5122128
    Abstract: There is disclosed an insert for the orifice of a ruminal bolus. The insert fits within the exit orifice of the ruminal bolus such that the medicated paste being discharged passes through the insert creating a back pressure within the paste compartment of the bolus which improves the performance of the bolus. The insert also prevents foreign objects from becoming lodged in the orifice. The insert consists of a grid-like series of openings with insert members extending into the orifice for a significant portion of the total length. Integral with the insert is a flange which secures the insert within the orifice and prevents it from being removed from the orifice or from being driven into the orifice.
    Type: Grant
    Filed: March 15, 1990
    Date of Patent: June 16, 1992
    Assignee: ALZA Corporation
    Inventors: John R. Cardinal, Paul K. Wilkinson, Joel R. Zingerman
  • Controlled release bolus device
    Patent number: 4872873
    Abstract: This invention relates to an improved controlled release bolus device wherein the improvement comprises attaching at the orifice a screen or insert which prevents blockage of the orifice by exogeneous materials, but does not vary the flow of medicament from the device.
    Type: Grant
    Filed: December 14, 1987
    Date of Patent: October 10, 1989
    Assignee: Merck & Co., Inc.
    Inventor: Joel R. Zingerman