Patents by Inventor Hans U. Scheller

Hans U. Scheller 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 preparing solid powder formulations having different colors
    Patent number: 5089256
    Abstract: The process for the preparation of containers comprising two or more partial regions separated from each other of solid cast powder formulations having different colors employs containers into which separating bridges of a pasty composition have been injected, said composition being similar to the subsequently cast solid powder formulations. The bridges prevent the partial regions having different colors from coalescing.
    Type: Grant
    Filed: January 12, 1989
    Date of Patent: February 18, 1992
    Assignee: Wurttembergische Parfumerie-Fabrik GmbH
    Inventors: Hans U. Scheller, Karl A. Scheller
  • Electric toothbrush
    Patent number: 4450599
    Abstract: An electric toothbrush having a timer for monitoring brushing time. The timer is activated when the pressure exertred on the bristles exceeds a predetermined minimum pressure to ensure proper brushing for a predetermined minimum period of time.
    Type: Grant
    Filed: April 23, 1982
    Date of Patent: May 29, 1984
    Assignee: Wurttembergische Parfumerie-Fabrik GmbH
    Inventors: Hans U. Scheller, Karl A. Scheller
  • Strong foaming toothpaste
    Patent number: 4301141
    Abstract: An improved strong foaming toothpaste containing gelatin, a gelatinous eggwhite product or a mixture thereof and at least one surfactant. The gelatin or gelatinous eggwhite product makes it possible to reduce the surfactant content, thereby providing a toothpaste which avoids the adverse effects a high content of surfactant has on the mouth mucous membrane.About 1 to 2.5% by weight of surfactant and 1 to 10% by weight of gelatin, a gelatinous eggwhite product, or mixture thereof, can be used in the toothpaste.
    Type: Grant
    Filed: September 19, 1980
    Date of Patent: November 17, 1981
    Assignee: Wurttembergische Parfumerie-Fabrik GmbH
    Inventor: Hans U. Scheller