Patents by Inventor Edward S. Greenberg

Edward S. Greenberg 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).

  • Controlled release polyacrylic acid granules and a process for preparing the same
    Patent number: 6762267
    Abstract: The present invention pertains to a method for forming polyacrylic acid granules and granules formed therefrom wherein the granules are flowable, have an increased bulk density relative to the as polymerized polyacrylic acids, and a low amount of dust which is generally characterized herein as particles which pass through a 325 mesh screen. The granules formed by the method of the present invention can be used to prepare controlled release tablets, especially controlled release pharmaceutical tablets. The controlled release properties of the tablets formed from granules prepared according to the present invention are unexpectedly better than tablets prepared from granules formed by other known granulation methods.
    Type: Grant
    Filed: March 31, 2003
    Date of Patent: July 13, 2004
    Assignee: Noveon IP Holdings Corp.
    Inventors: Daniel James Adams, David William Weaver, William R. Wilber, Jian-Hwa Guo, Edward S. Greenberg
  • Controlled release polyacrylic acid granules and a process for preparing the same
    Publication number: 20030187167
    Abstract: The present invention pertains to a method for forming polyacrylic acid granules and granules formed therefrom wherein the granules are flowable, have an increased bulk density relative to the as polymerized polyacrylic acids, and a low amount of dust which is generally characterized herein as particles which pass through a 325 mesh screen. The granules formed by the method of the present invention can be used to prepare controlled release tablets, especially controlled release pharmaceutical tablets. The controlled release properties of the tablets formed from granules prepared according to the present invention are unexpectedly better than tablets prepared from granules formed by other known granulation methods.
    Type: Application
    Filed: March 31, 2003
    Publication date: October 2, 2003
    Applicant: Noveon IP Holdings Corp.
    Inventors: Daniel James Adams, David William Weaver, William R. Wilber, Jian-Hwa Guo, Edward S. Greenberg
  • Directly compressed solid dosage articles
    Patent number: 6623756
    Abstract: Solid dosage articles such as pharmaceutical tablets for the controlled release of a desired compound such as an active ingredient are directly compressed from a flowable, compressible mixture of the active ingredient, a slightly cross-linked rheology modifying polymer or copolymer, and one or more excipients. The rheology modifying polymer or copolymer is a granulated powder of suitable particle size and is generally made from one or more unsaturated (di)carboxylic acids, half ester thereof, and other optional monomers.
    Type: Grant
    Filed: April 27, 2000
    Date of Patent: September 23, 2003
    Assignee: Noveon IP Holdings Corp.
    Inventors: William R. Wilber, Jian-Hwa Guo, Edward S. Greenberg
  • Method for reducing the formation of trihalomethanes in drinking water
    Patent number: 4243525
    Abstract: The level of trihalomethanes in drinking water is reduced by adding hydrogen peroxide to the water prior to chlorination.
    Type: Grant
    Filed: March 29, 1979
    Date of Patent: January 6, 1981
    Assignee: FMC Corporation
    Inventor: Edward S. Greenberg