Patents by Inventor Richard L. Tadsen

Richard L. Tadsen 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: 20130131765
    Abstract: A medical electrical lead may include an insulative lead body, a conductor disposed within the insulative lead body, an electrode disposed on the insulative lead body and in electrical contact with the conductor and a fibrous matrix disposed at least partially over the electrode. The fibrous matrix may be formed from a polyisobutylene urethane, urea or urethane/urea copolymer.
    Type: Application
    Filed: November 19, 2012
    Publication date: May 23, 2013
    Inventors: Jeannette C. Polkinghorne, Devon N. Arnholt, James P. Rohl, Brian L. Schmidt, Jan Seppala, Richard L. Tadsen, Patrick Willoughby, Steve Zhang, Shrojalkumar Desai, Joseph T. Delaney, JR., David R. Wulfman
  • Patent number: 5527489
    Abstract: A process for preparing a high-density granular detergent product by dry neutralizing alkylbenzene sulfonic acid with a particulate mixture of a water-soluble alkaline inorganic material, for example, sodium carbonate, and a hydratable inorganic detergent builder in an apparatus which provides both mixing and shearing of the particulate mixture, e.g. a V-Blender, thereby forming the granular detergent product. The process includes the addition of particles of pH sensitive detergent surfactant, such as alkyl sulfate, into the particulate mixture prior to the addition of the alkylbenzene sulfonic acid. The high-density product has good product homogeneity and surfactant solubility, and essentially no reversion of the alkyl sulfate to the corresponding fatty alcohol due to acid-catalyzed hydrolysis. Other pH sensitive detergent surfactants include alpha-sulfonated fatty acid alkyl ester and polyhydroxy fatty acid amides.
    Type: Grant
    Filed: December 7, 1993
    Date of Patent: June 18, 1996
    Assignee: The Procter & Gamble Company
    Inventors: Richard L. Tadsen, Gary W. Bufler