Patents by Inventor Klaus Uhlmann

Klaus Uhlmann 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).

  • Procedure for the manufacture of elastic textile fabrics
    Patent number: 6140261
    Abstract: A process for imparting permanent elastic properties to fabrics constructed of yarns principally formed of natural, inelastic fibers, the process comprising the steps of spinning a first yarn with Z-twist, spinning a second yarn with S-twist, forming a fabric from the first and second yarns by alternating first and second yarns during fabric formation so that the fabric contains alternate S-twist and Z-twist yarns, shrinking the fabric, and setting the twist in the yarns in the fabric.
    Type: Grant
    Filed: September 10, 1997
    Date of Patent: October 31, 2000
    Inventor: Klaus Uhlmann
  • Method of producing biological specimens
    Patent number: 4784873
    Abstract: In a method of producing flexible and durable biological specimens, tissue water and any preservative which may be present is replaced by one or more water-soluble impregnating agents by direct molecular substitution without any intermedium or solvent and without removing the tissue lipides. Polyethylene glycol may be used as the impregnating agent. The replacement preferably occurs under vacuum and the specimen may be subsequently sealed.
    Type: Grant
    Filed: April 30, 1984
    Date of Patent: November 15, 1988
    Assignee: Arthur Pfeiffer Vakuumtechnik Wetzlar GmbH
    Inventors: Wilhelm Kienecker, Klaus Uhlmann