Patents by Inventor Bruce R. Berry

Bruce R. Berry 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).

  • Water-based coating removers
    Patent number: 5006279
    Abstract: This invention relates to water-based coating remover compositions and concentrates from which those compositions are made and processes for preparing said compositions and concentrates where said concentrates comprise a substantially stable and homogenous mixture of N-methyl-2-pyrrolidone, a mononuclear aromatic hydrocarbon, a glycol ether, an alkanolamine and a hydroxypropyl cellulose thickener.
    Type: Grant
    Filed: August 24, 1988
    Date of Patent: April 9, 1991
    Inventors: William J. Grobbel, Bruce R. Berry