Patents by Inventor Hans G. Weber

Hans G. Weber 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).

  • Process for the CFC-free production of cellular polyurethane molded parts
    Patent number: 5464880
    Abstract: A process for the CFC-free production of cellular polyurethane molded parts/articles with solid surfaces by reacting a reaction mixture of per se known starting materials in sealed molds, to yield polyurethane foams. Carbamates obtainable from aliphatic aminoalcohols and carbon dioxide are used as blowing agents, optionally in conjunction with other blowing agents. The process is suitable for producing foam coverings on steering wheels, spoilers and protective upholstery in car interiors, and for producing soles of shoes or shoe components.
    Type: Grant
    Filed: October 31, 1994
    Date of Patent: November 7, 1995
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hans G. Weber, Peter Haas, Erhard Michels, Christian Weber, Klaus Brecht
  • Method and tooth brush for the removal of plaque from teeth and gums
    Patent number: 4743199
    Abstract: In a method and a tooth brush for removing plaque from teeth and gums, the mixture of ozone with air of a predetermined ozone concentration is fed into the oral cavity through tubular bristles, provided on the surface of the tooth brush, from a source of the ozone-air mixture. The ozone-air mixture is distributed simultaneously with a dentifrice containing solid particles through which undesired high ozone concentration at spots outside a target spot in the oral cavity is neutralized.
    Type: Grant
    Filed: December 16, 1985
    Date of Patent: May 10, 1988
    Inventors: Anette Weber, Hans G. Weber