Patents by Inventor Steven M. Hoagland

Steven M. Hoagland 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).

  • Recovery of palladium
    Patent number: 5654458
    Abstract: Improvement on the recovery of palladium from aqueous acidic solutions employing ketoximes, including novel ether oximes and palladium complexes, comprising contacting the aqueous acidic solution containing the palladium with an organic solvent containing the oxime to form two immiscible phases, separating the organic and aqueous acidic phases and stripping the palladium values from the organic phase using an aqueous ammonia solution. The organic phase may contain phase transfer agents and modifiers.
    Type: Grant
    Filed: May 14, 1993
    Date of Patent: August 5, 1997
    Assignee: Henkel Corporation
    Inventors: Michael D. Fabiano, Gary A. Kordosky, Phillip L. Mattison, Michael J. Virnig, Bert Gruber, Steven M. Hoagland
  • Carbonylation of allylic alcohols and synthesis of an ambergris fragrance compound
    Patent number: 5639894
    Abstract: A process for the carbonylation of allylic alcohols such as nerolidol, farnesol, or their monocyclic analogues with carbon monoxide at a pressure of at least 30 bar in the presence of a polar solvent and a palladium halide catalyst, optionally an alkali metal halide salt, and optionally an alcoholic solvent. The carbonylated product may then be reduced to the corresponding alcohol, which is cyclized in the presence of Lewis or Bronsted acids to afford an ambergris fragrance compound.
    Type: Grant
    Filed: March 23, 1994
    Date of Patent: June 17, 1997
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Jonathan M. Cassel, Steven M. Hoagland, James M. Renga
  • Carbonylation of allylic alcohols and synthesis of an ambergris fragance compound
    Patent number: 5326888
    Abstract: A process for the carbonylation of allylic alcohols such as nerolidol, farnesol, or their monocyclic analogues with carbon monoxide at a pressure of at least 30 bar in the presence of a polar solvent and a palladium halide catalyst, optionally an alkali metal halide salt, and optionally an alcoholic solvent. The carbonylated product may then be reduced to the corresponding alcohol, which is cyclized in the presence of Lewis or Bronsted acids to afford an ambergris fragrance compound.
    Type: Grant
    Filed: October 9, 1990
    Date of Patent: July 5, 1994
    Assignee: Henkel Research Corporation
    Inventors: Jonathan M. Cassel, Steven M. Hoagland, James M. Renga
  • Telomerization of 1,3-butadiene
    Patent number: 5206396
    Abstract: Octyl ethers and octadienyl ethers of glucose, sucrose, bisphenol A, 4-substituted-2,2,6,6-tetramethylpiperidines are disclosed. Compositions comprised of a mixture of octyl ethers of glucose and sucrose and those containing octadienyl ethers of sugar acids and ring-opened epoxidized octadienyl ethers are also disclosed as are telomerization processes.
    Type: Grant
    Filed: July 25, 1990
    Date of Patent: April 27, 1993
    Assignee: Henkel Research Corporation
    Inventors: Bert Gruber, Kenneth J. Weese, Steven M. Hoagland, Hans-Peter Mueller, Karlheinz Hill, Arno Behr, James R. Tucker