Patents by Inventor Jorn Ehlers

Jorn Ehlers 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).

  • Preparation of catalysts by the precipitation of a hydroxide or sulfide from an emulsion in the presence of carbonaceous solid
    Patent number: 4495306
    Abstract: A process for the preparation of hydrogenation catalysts by contacting a carbonaceous material with a water in oil emulsion containing a salt of a hydrogenating metal, converting said salt to a hydroxide or sulfide and subsequently removing the water.
    Type: Grant
    Filed: February 23, 1984
    Date of Patent: January 22, 1985
    Assignee: The British Petroleum Company Limited
    Inventors: Peter Budahn, Jorn Ehlers
  • Heat storage medium
    Patent number: 4342661
    Abstract: A heat storage medium contains (a) a sodium hydroxide in concentration from 60% by weight up to and including the stoichiometric concentration in sodium hydroxide monohydrate, (b) water in concentration from 40% by weight down to and including the said stoichiometric concentration, and (c) 0.1 to 2.0% by weight of tellurium dioxide, all percentages being expressed as percentages by weight of the total weight of sodium hydroxide and water. The tellurium dioxide reduces the tendency of the sodium hydroxide water system to supercool.
    Type: Grant
    Filed: June 3, 1981
    Date of Patent: August 3, 1982
    Assignee: The British Petroleum Company Limited
    Inventors: Jorn Ehlers, Helmut Haukelt