Patents by Inventor Ralf Olt

Ralf Olt 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).

  • Method for determining ammonium
    Patent number: 11378566
    Abstract: The invention relates to a method for determining ammonium or ammonia in aqueous samples in accordance with the known Berthelot method, wherein the risk of incorrectly low results is greatly reduced by additionally measuring the extinction in the absorption range of the nitroprusside used as a catalyst.
    Type: Grant
    Filed: September 18, 2017
    Date of Patent: July 5, 2022
    Assignee: MERCK PATENT GMBH
    Inventor: Ralf Olt
  • METHOD FOR DETERMINING AMMONIUM
    Publication number: 20190265219
    Abstract: The invention relates to a method for determining ammonium or ammonia in aqueous samples in accordance with the known Berthelot method, wherein the risk of incorrectly low results is greatly reduced by additionally measuring the extinction in the absorption range of the nitroprusside used as a catalyst.
    Type: Application
    Filed: September 18, 2017
    Publication date: August 29, 2019
    Applicant: MERCK PATENT GMBH
    Inventor: Ralf OLT
  • Means and method for determining chemical oxygen demand
    Patent number: 9091674
    Abstract: The invention relates to a means and a method for the photometric determination of the chemical oxygen demand of chloride-containing samples.
    Type: Grant
    Filed: November 16, 2012
    Date of Patent: July 28, 2015
    Assignee: Merck Patent GmbH
    Inventors: Ralf Olt, Gunter Decker
  • MEANS AND METHOD FOR DETERMINING CHEMICAL OXYGEN DEMAND
    Publication number: 20140322814
    Abstract: The invention relates to a means and a method for the photometric determination of the chemical oxygen demand of chloride-containing samples.
    Type: Application
    Filed: November 16, 2012
    Publication date: October 30, 2014
    Applicant: MERCK PATENT GMBH
    Inventors: Ralf Olt, Gunter Decker
  • METHOD AND MEANS FOR THE ENZYMATIC DETERMINATION OF ETHANOL
    Publication number: 20100233747
    Abstract: The invention relates to a method and means for the enzymatic determination of ethanol. The method according to the invention prevents ethanol vapours in the ambient air from interfering with the determination.
    Type: Application
    Filed: April 23, 2007
    Publication date: September 16, 2010
    Inventor: Ralf Olt