Patents by Inventor Wilhelm Kamereit

Wilhelm Kamereit 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: 6982044
    Abstract: A method of preventing traffic surfaces from becoming slippery in winter by application of a roadway surface layer made of a composition which is composed of a binder which is compatible with the traffic surfaces and which comprises a thawing agent, enveloped in a temporarily water-impermeable solid-material jacket, and where appropriate, further allures and additives and the temporarily water-impermeable solid-material jacket of the thawing agent is preferably composed of a cured phenolic resin.
    Type: Grant
    Filed: December 19, 2002
    Date of Patent: January 3, 2006
    Inventors: Josef Suren, Wilhelm Kamereit
  • Publication number: 20030116749
    Abstract: A method of preventing traffic surfaces from becoming slippery in winter by application of a roadway surface layer made of a composition which is composed of a binder which is compatible with the traffic surfaces and which comprises a thawing agent, enveloped in a temporarily water-impermeable solid-material jacket, and where appropriate, further allures and additives and the temporarily water-impermeable solid-material jacket of the thawing agent is preferably composed of a cured phenolic resin.
    Type: Application
    Filed: December 19, 2002
    Publication date: June 26, 2003
    Inventors: Josef Suren, Wilhelm Kamereit
  • Patent number: 5114475
    Abstract: Preparation of a fine-grained mixture having hydrophobic properties and a grain size substantially less than 0.2 mm and preferable less than 0.1 mm for asphalt-treatment and de-icing, having a hydrophobic component with a hydrophilic component of at least 50% by weight of the mixture and having 55-99.5% by weight of a residual salt which results from the production of glycerol and 45-0.05% by weight of an additive consisting of salts, oxides, hydoxides, and combinations thereof, in the moist condition and at least partially ground with the residual salt, and containing alkali-earth metal or other non-alkali metals as cations.
    Type: Grant
    Filed: October 15, 1990
    Date of Patent: May 19, 1992
    Assignee: Mannesmann Aktiengesellschaft
    Inventors: Werner Siegmund, deceased, Wilhelm Kamereit, Oskar M. Schmitt, Volker Weidmann, Otto J. Friedrich