Patents by Inventor Richard J. Harwood

Richard J. Harwood 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).

  • Process for the preparation of a viscosity-stable antacid composition
    Patent number: 5112813
    Abstract: A process for the preparation of a viscosity-stable antacid composition containing an alginic acid salt comprising reacting an antacid material with said salt at elevated temperatures to form a reaction product and recovering said reaction product in stabilized form.
    Type: Grant
    Filed: March 7, 1988
    Date of Patent: May 12, 1992
    Assignee: Rhone-Poulenc Rorer Pharmaceuticals Inc.
    Inventors: Joseph R. Luber, Kenneth M. Feld, Richard J. Harwood, Wayne M. Grim
  • Method for the preparation of a theophylline sustained release pharmaceutical composition and the composition prepared thereby
    Patent number: 5026709
    Abstract: A method for the preparation of a sustained release pharmaceutical composition comprising forming a fluidized ring of said particles and contacting said particles maintained suspended in said ring with a liquid composition containing a pharmaceutically active material and an alkali-soluble material.
    Type: Grant
    Filed: June 7, 1988
    Date of Patent: June 25, 1991
    Assignee: Rorer Pharmaceutical Corporation
    Inventors: Richard J. Harwood, Gunvant N. Mehta, Ramesh C. Jhawar, Liang-Lii Huang, Wayne M. Grim, Shun P. Li
  • Anti-ulcer composition
    Patent number: 4975281
    Abstract: In accordance with the present invention a novel oral composition and method of using same for the treatment of ulcers and other gastrointestinal disorders is disclosed. The composition comprises an agent capable of forming an ulcer-adherent protective complex in an acid environment combined with one or more alkaline materials in a total amount sufficient to substantially prevent the formation of such a complex in the mouth and adherence of such a complex to the buccal mucosa.
    Type: Grant
    Filed: January 30, 1989
    Date of Patent: December 4, 1990
    Assignee: E. R. Squibb & Sons, Inc.
    Inventors: Richard J. Harwood, Edward V. Henry, Joseph S. Sonk, Luke T. H. Foo, Jay L. Rheingold, Robert C. deGroof
  • Process for the preparation of a viscosity-stable antacid composition
    Patent number: 4744986
    Abstract: A process for the preparation of a viscosity-stable antacid composition containing an alginic acid salt comprising reacting an antacid material with said salt at elevated temperatures to form a reaction product and recovering said reaction product in stabilized form.
    Type: Grant
    Filed: March 7, 1986
    Date of Patent: May 17, 1988
    Assignee: Rorer Pharmaceutical Corporation
    Inventors: Joseph R. Luber, Kenneth M. Feld, Richard J. Harwood, Wayne M. Grim
  • Biosoluble ocular insert
    Patent number: 4730013
    Abstract: Ocular inserts with or without pharmacologically active agents comprising low molecular weight polymers have a lower propensity to cause blurred vision compared with inserts prepared from high molecular weight hydroxypropyl cellulose. When an enteric coating material is included as a constituent of the matrix there is provided a means for controlling and predicting dissolution rates of the insert to yield a prolonged residence time.
    Type: Grant
    Filed: March 2, 1987
    Date of Patent: March 8, 1988
    Assignee: Merck & Co., Inc.
    Inventors: Joseph V. Bondi, Richard J. Harwood
  • Water and drug delivery system for suppository use
    Patent number: 4439194
    Abstract: A drug delivery system designed to deliver water and drug to the site of administration is composed of a core of an aqueous solubulizing system in a wax housing, which melts at body temperature, surrounded by a matrix of drug and water-dispersible excipients. The entire unit may also be coated with a semi-permeable membrane to modulate drug release.
    Type: Grant
    Filed: September 8, 1981
    Date of Patent: March 27, 1984
    Assignee: Merck & Co., Inc.
    Inventors: Richard J. Harwood, Joseph V. Bondi
  • Topical application of interferon inducers
    Patent number: 4283393
    Abstract: Virus infections of eye, skin and mucous membrane tissue are effectively treated by controlled release topical application of interferon inducers.
    Type: Grant
    Filed: March 13, 1979
    Date of Patent: August 11, 1981
    Assignee: Merck & Co., Inc.
    Inventors: Arthur K. Field, Richard J. Harwood
  • Transdermal delivery of drugs
    Patent number: 4230105
    Abstract: An improved method for the topical administration of systemically or locally active drugs utilizes a bandage containing one or more layers including a drug useful in the treatment of disease and a heat-generating substance, each dispersed intimately throughout said bandage layers.
    Type: Grant
    Filed: November 13, 1978
    Date of Patent: October 28, 1980
    Assignee: Merck & Co., Inc.
    Inventor: Richard J. Harwood
  • Reclosable thermoformed blister-type package
    Patent number: 4223788
    Abstract: A rigid blister package includes a rigid thermoformed plastic cover piece and a flexible backing sheet, a score line for opening said package, and a slide fastener for reclosing the blister package, along with stops to hold the slide fastener in the open or closed position.
    Type: Grant
    Filed: November 16, 1978
    Date of Patent: September 23, 1980
    Assignee: Merck & Co., Inc.
    Inventors: Arthur Jaeger, Richard Gunderlock, Richard J. Harwood
  • Solid state ophthalmic medication
    Patent number: 4179497
    Abstract: Solid unit dosage medicaments which are suitable for use in animals and humans are prepared with hydroxypropyl cellulose as the primary formulating excipient. These medicaments are particularly suitable for ophthalmic use since they are slowly but completely water soluble when they are inserted in the cul-de-sac of the eye and thus provide for a convenient means of prolonged treatment of the eye with concomitant reduced dosing frequency.
    Type: Grant
    Filed: November 13, 1978
    Date of Patent: December 18, 1979
    Assignee: Merck & Co., Inc.
    Inventors: Edward M. Cohen, Wayne M. Grim, Richard J. Harwood, Gunvant N. Mehta