Patents by Inventor Hans-Georg Rey

Hans-Georg Rey 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).

  • Stable test strips having a water-soluble paper layer and methods for making same
    Patent number: 4061468
    Abstract: Stable test strips for the detection of components in liquids, for example blood, ketone bodies and nitrates in urine, includes two indicator layers one of which is a water-soluble paper.
    Type: Grant
    Filed: July 1, 1975
    Date of Patent: December 6, 1977
    Assignee: Boehringer Mannheim GmbH
    Inventors: Hans Lange, Walter Rittersdorf, Hans-Georg Rey, Wolfgang Werner, Peter Rieckmann
  • Method for the detection of fatty substances on surfaces
    Patent number: 3993742
    Abstract: A diagnostic composition comprising a base material and a light colored coating material thereon, wherein the base material has a dark color on its coated side, and the coating material is a finely dispersed microporous plastic applied in a thickness sufficient for the complete masking of the color of the base material, is outstandingly effective in detecting fat or fat-like substances on surfaces by merely contacting the composition with the surface.
    Type: Grant
    Filed: December 19, 1973
    Date of Patent: November 23, 1976
    Assignee: Boehringer Mannheim G.m.b.H.
    Inventors: Hans-Georg Rey, Walter Rittersdorf, Ernst-Werner Busch
  • Diagnostic composition for the determination of glucose
    Patent number: 3964870
    Abstract: Glucose contained in urine is determined by contacting a sample with a diagnostic composition comprising an absorbent carrier impregnated with glucose oxidase, peroxidase, an indicator compound such as o-tolidine, and as a buffer, 2-(N-morpholino)-ethane-sulfonic acid.
    Type: Grant
    Filed: March 4, 1975
    Date of Patent: June 22, 1976
    Assignee: Boehringer Mannheim G.m.b.H.
    Inventors: Hugo Tiedemann, Bernward Sojka, Hans Lange, Hans-Georg Rey, Peter Rieckmann