Patents by Inventor Walter Låssig

Walter Låssig 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 the production of noble metal oxalate complexes
    Patent number: 9156767
    Abstract: The production of noble metal oxalate complexes from noble metal precursors and oxalic acid and/or oxalic acid salts is an exothermic reaction, in which heat and CO2 are produced, is described. The temperature can increase above the decomposition point of the noble metal oxalate complexes in the course of the reaction, which simultaneously releases more CO2. For safety reasons, when the reaction is carried out on a large scale, it is therefore necessary to take into consideration that the product must not be decomposed by heat that is produced during the reaction. Therefore, according to the invention, a method for the production of noble metal oxalate complexes is provided, in which the product noble metal oxalate complexes are added to the reaction mixture as an auto-catalyst.
    Type: Grant
    Filed: September 24, 2013
    Date of Patent: October 13, 2015
    Assignee: Heraeus Deutschland GmbH & Co. KG
    Inventors: Richard Walter, Florian Eweiner, Walter Låssig, Jörg Fuchs Alameda
  • METHOD FOR THE PRODUCTION OF NOBLE METAL OXALATE COMPLEXES
    Publication number: 20150232405
    Abstract: The production of noble metal oxalate complexes from noble metal precursors and oxalic acid and/or oxalic acid salts is an exothermic reaction, in which heat and CO2 are produced, is described. The temperature can increase above the decomposition point of the noble metal oxalate complexes in the course of the reaction, which simultaneously releases more CO2. For safety reasons, when the reaction is carried out on a large scale, it is therefore necessary to take into consideration that the product must not be decomposed by heat that is produced during the reaction. Therefore, according to the invention, a method for the production of noble metal oxalate complexes is provided, in which the product noble metal oxalate complexes are added to the reaction mixture as an auto-catalyst.
    Type: Application
    Filed: September 24, 2013
    Publication date: August 20, 2015
    Inventors: Richard Walter, Florian Eweiner, Walter Låssig, Jörg Fuchs Alameda