Patents by Inventor Hartmut Rau

Hartmut Rau 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).

  • Combination, system; holding means; dental tool and dental set
    Patent number: 11202689
    Abstract: A combination has an implant, a dental dam and a holding device for detachably holding the dental dam at an implant end portion of the implant. The holding device is formed of a circular ring which is closed on its periphery and which has a ring-clamping portion that extends around a ring through-opening. A system has a combination that has an implant, which is preferably a dental implant; a dental dam; and a holding device. A dental tool can be used for detachably fastening a dental dam to an implant via a holding device.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: December 21, 2021
    Inventor: Hartmut Rau
  • COMBINATION, SYSTEM; HOLDING MEANS; DENTAL TOOL AND DENTAL SET
    Publication number: 20190000591
    Abstract: A combination has an implant, a dental dam and a holding device for detachably holding the dental dam at an implant end portion of the implant. The holding device is formed of a circular ring which is closed on its periphery and which has a ring-clamping portion that extends around a ring through-opening. A system has a combination that has an implant, which is preferably a dental implant; a dental dam; and a holding device. A dental tool can be used for detachably fastening a dental dam to an implant via a holding device.
    Type: Application
    Filed: December 16, 2016
    Publication date: January 3, 2019
    Inventor: Hartmut RAU
  • Stabilized monomer composition
    Patent number: 6706209
    Abstract: A stabilized monomer composition containing at least one ethylenically unsaturated monomer and a combination of N,N-diethylhydroxylamine an N-nitroso-N-phenylhydroxylamine or its salt in a weight ratio of from 1:1 to 10:1 permits the synthesis of 2-hydroxyalkyl (meth)acrylates in particularly high yields and remains stable during prolonged storage.
    Type: Grant
    Filed: August 24, 2000
    Date of Patent: March 16, 2004
    Assignee: Roehm GmbH & Co. KG
    Inventors: Jakob Scharf, Hartmut Rau, Friedrich Goetzen