Patents by Inventor David M. Shenberger

David M. Shenberger 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).

  • Publication number: 20100173147
    Abstract: A composition of matter comprising a cationic energy-cured epoxy material and a plurality of microcapsules. In some embodiments, cationic energy-cured epoxy material is a cationic UV-cured varnish. In some embodiments, the composition further comprises a viscosity modifier. The viscosity modifier comprises a viscosity reducer or a viscosity enhancer. A combination comprising a substrate and the composition of matter, and a method of applying the composition of matter to a substrate, are also described.
    Type: Application
    Filed: June 19, 2008
    Publication date: July 8, 2010
    Inventors: Steven Greenland, Lyudmila Feldman, David M. Shenberger
  • Patent number: 6017399
    Abstract: A method for controlling and removing solid deposits from a surface of at least one component of a steam generating system, wherein the solid deposits are formed from an impurity introduced into the steam generating system, is disclosed.
    Type: Grant
    Filed: March 13, 1998
    Date of Patent: January 25, 2000
    Assignee: Calgon Corporation
    Inventors: Billy Dean Fellers, Sr., David M. Shenberger
  • Patent number: 5779814
    Abstract: A method for controlling and removing solid deposits from a surface of at least one component of a steam generating system, wherein the solid deposits are formed from an impurity introduced into the steam generating system.
    Type: Grant
    Filed: December 12, 1995
    Date of Patent: July 14, 1998
    Inventors: Billy Dean Fellers, Sr., David M. Shenberger
  • Patent number: 5454954
    Abstract: A composition useful as a deposit control agent to control the formation, deposition and adherence of scale in the process of extracting precious metals from an ore comprising (I) an aqueous slurry of a mining circuit having the ore, and (II) from about 5 to 500 ppm, based on the total weight of (I), of (a) from about 50 to 100 weight percent, based on the weight of (II), of a polyether polyamino methylene phosphonate, and (b) from about 0.1 to 50 weight percent, based on the weight of (II), of a polymer. A method for inhibiting calcium scale in one or more aqueous systems of a mining circuit employing this composition is also provided.
    Type: Grant
    Filed: November 2, 1994
    Date of Patent: October 3, 1995
    Assignee: Calgon Corporation
    Inventors: Nicholas J. Alfano, David M. Shenberger