Patents by Inventor Joseph A. Ehrhard

Joseph A. Ehrhard 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: 9540631
    Abstract: Compositions are provided to immobilize and protect oxidase enzymes from proteolytic and hydrolytic attack, utilizing a porous, inert organic, or inorganic, substrate matrix useful in generating hydrogen peroxide in situ for use in oral, topical mucosal and intracavity uses for use in or on the human body and other mammalian, reptile, fish and amphibians. The selected porosity of the support matrix provides the basis for generating hydrogen peroxide on a steady state basis. Both diatomaceous earth and silica gel, either in natural or pre-silanized forms, allow for the excluding of non-preferred enzymes from the support matrix, and for diffusion of the peroxide in the reduction of oral pathogens and their attendant malodorous compounds, or other pathogens in the mucosa, bodily fluids and cavities, in addition to oxidizing color bodies to affect bleaching.
    Type: Grant
    Filed: July 10, 2008
    Date of Patent: January 10, 2017
    Inventors: Peter T. Pugliese, Steven M. Pugliese, Joseph A. Ehrhard
  • Patent number: 6599448
    Abstract: The present invention provides a radio-opaque composition including a polymer or monomer, wherein the polymer or monomer has a non-leachable radio-opaque moiety. The non-leachable radio-opaque moiety is covalently attached to the polymer or monomer.
    Type: Grant
    Filed: May 10, 2000
    Date of Patent: July 29, 2003
    Assignee: Hydromer, Inc.
    Inventors: Joseph A. Ehrhard, Jr., Patrick Hennessey
  • Patent number: 6440442
    Abstract: The present invention provides a mammalian teat dip composition capable of being used during a mammal's dry period comprising a solution of a film-forming polymer blend comprising a first polymer component which is an organic, solvent-soluble, preformed, thermoplastic polyurethane having no reactive isocyanate groups and a second polymer component which is a hydrophilic poly(N-vinyl lactam), said blend capable of withstanding exposure to water without significant loss of said hydrophilic poly(N-vinyl lactam) in an amount sufficient to form a water-resistant film upon topical application to mammalian skin; and wherein said blend comprises from about 10 to about 80 weight percent of said first polymer in combination with said solvent and from about 1 to about 20 weight percent of said second polymer; and at least one antimicrobial agent in an amount sufficient to treat and protect mammalian skin from infection; wherein said composition is capable of being removed by peeling.
    Type: Grant
    Filed: November 6, 2000
    Date of Patent: August 27, 2002
    Assignee: Hydromer, Inc.
    Inventors: Joseph Ehrhard, Michael Eknoian, Alfredo Vinci
  • Patent number: 6395289
    Abstract: The invention discloses a mammalian teat dip for controlling mastitis, a method for preparing the composition and a method of treatment of mammals. The composition contains a film-forming polymer blend, at least one antimicrobial and a sodium bicarbonate buffering agent. The polymer blend contains a solvent-soluble, thermoplastic polyurethane and a hydrophilic poly(N-vinyl lactam). Upon application to mammalian skin, this composition leaves a long-lasting, water-resistant, residual, elastic film that treats and protects mammalian skin from infection.
    Type: Grant
    Filed: April 25, 2000
    Date of Patent: May 28, 2002
    Assignee: Hydromer, Inc.
    Inventors: Joseph Ehrhard, Michael Eknoian, Alfredo Vinci
  • Patent number: 6203812
    Abstract: The invention discloses a mammalian teat dip for controlling mastitis, a method for preparing the composition and a method of treatment of mammals. The composition contains a film-forming polymer blend and at least one antimicrobial. The polymer blend contains a solvent-soluble, thermoplastic polyurethane and a hydrophilic poly(N-vinyl lactam). Upon application to mammalian skin, this composition leaves a long-lasting, water-resistant, residual, elastic film which treats and protects mammalian skin from infection.
    Type: Grant
    Filed: June 29, 1998
    Date of Patent: March 20, 2001
    Assignee: Hydromer, Inc.
    Inventors: Joseph Ehrhard, Michael Eknoian