Patents by Inventor William Perlberg

William Perlberg 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: 6223693
    Abstract: A soft rawhide product is made by soaking raw animal hides in a humectant or combining chopped rawhide particles with the humectant and a soft edible binder. The humectant is taken up by the rawhide and provides a soft rawhide product even after the product is permitted to dry or is exposed to the air for long periods of time. The presence of the humectant and binder not only contribute to the softness of the rawhide product, but permits an increase in the moisture content and/or flexibility of the rawhide while still maintaining an acceptably low water activity. An additional benefit is an increased ability to import colors, flavors, scents, nutritional material or drugs into the edible chew toy product.
    Type: Grant
    Filed: December 11, 1998
    Date of Patent: May 1, 2001
    Assignee: Hartz Mountain Corporation
    Inventors: William Perlberg, David S. Schwartz, Richard W. Glass
  • Patent number: 5595749
    Abstract: An insecticide spray is provided with a water insoluble organophosphate ester (tetrachlorvinphos) that is emulsified in an aqueous carrier and may be delivered via a pump or aerosol to kill fleas and ticks, including the deer tick, on household pets such as cats and dogs.
    Type: Grant
    Filed: April 6, 1995
    Date of Patent: January 21, 1997
    Assignee: The Hartz Mountain Corporation
    Inventors: Lawrence Rascher, Samir Bishai, William Perlberg
  • Patent number: 4823960
    Abstract: A package device including a housing and a removably mounted insert support which enables the insertion, support and display of a vessel, e.g. a glass vessel containing a fragrance.
    Type: Grant
    Filed: April 7, 1988
    Date of Patent: April 25, 1989
    Assignee: Hartz Mountain Corporation
    Inventors: William Perlberg, Albert B. Skolnik
  • Patent number: 4547360
    Abstract: What are disclosed are a method for repelling small blood feeding pests from the skin, hair, or fur of a mammal, which method comprises applying a pest repellant amount of a repellant which is cyano (3-phenoxyphenyl) methyl-4-chloro-alpha-(1-methylethyl) benzeneacetate to said skin, hair, or fur and compositions for performing this method.
    Type: Grant
    Filed: October 16, 1984
    Date of Patent: October 15, 1985
    Assignee: The Hartz Mountain Corporation
    Inventor: William Perlberg
  • Patent number: D425264
    Type: Grant
    Filed: December 1, 1995
    Date of Patent: May 16, 2000
    Assignee: The Hartz Mountain Corporation
    Inventors: William Perlberg, Richard W. Glass