Patents by Inventor Wolfgang Giede

Wolfgang Giede 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).

  • Patent number: 7084286
    Abstract: Processes for preparing conjugated fatty acid products are described wherein (a) a composition which comprises a fatty acid ester having at least two unconjugated, carbon-carbon double bonds is provided; (b) the fatty acid ester is conjugated in the presence of a water-free base; (c) phosphoric acid is added to the conjugated fatty acid ester such that phosphate salts are precipitated; and (d) the precipitated phosphate salts are removed.
    Type: Grant
    Filed: August 28, 2002
    Date of Patent: August 1, 2006
    Assignee: Cognis Deutschland GmbH & Co. KG
    Inventors: Lars Zander, Albert Strube, Andreas Heidbreder, Alfred Westfechtel, Wolfgang Giede
  • Publication number: 20040242909
    Abstract: Processes for preparing conjugated fatty acid products are described wherein (a) a composition which comprises a fatty acid ester having at least two unconjugated, carbon-carbon double bonds is provided; (b) the fatty acid ester is conjugated in the presence of a water-free base; (c) phosphoric acid is added to the conjugated fatty acid ester such that phosphate salts are precipitated; and (d) the precipitated phosphate salts are removed.
    Type: Application
    Filed: March 8, 2004
    Publication date: December 2, 2004
    Inventors: Lars Zander, Albert Strube, Andreas Heidbreder, Alfred Westfechtel, Wolfgang Giede
  • Patent number: 6160144
    Abstract: The invention pertains to synthetic esters containing a) fatty acid mixtures with an oleic acid content of 85 wt % and a stearic acid content of 0.5 to 2.5 wt %, both relative to the mixture, b) alcohols and c) as desired, polyfunctional carboxylic acids. The invention also relates to hydraulic oils based on these esters, and to the use of the esters as lubricants, as hydraulic oils and in cosmetics.
    Type: Grant
    Filed: June 12, 1997
    Date of Patent: December 12, 2000
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Frank Bongardt, Britta Bossmann, Alfred Westfechtel, Wolfgang Giede
  • Patent number: 4302354
    Abstract: Mixtures of vicinal aminoalkanols of the formula ##STR1## wherein R.sub.1 and R.sub.2 are alkyl having from 1 to 21 carbon atoms and the sum of the carbon atoms in R.sub.1 +R.sub.2 is from 6 to 22, A is a member selected from the group consisting of alkylene having from 2 to 6 carbon atoms and methylalkylene having from 3 to 7 carbon atoms, y is an integer from 1 to 3, R.sub.4 and R.sub.5 are members selected from the group consisting of hydrogen, alkyl having from 1 to 4 carbon atoms and hydroxyalkyl having from 2 to 4 carbon atoms, and their salts with organic carboxylic acids, said mixtures having at least two different adjacent chain lengths of ##STR2## in the range of from 8 to 24 carbon atoms with the proviso that the vicinal substituents are distributed statistically; as well as their process of preparation and their application as corrosion inhibitors.
    Type: Grant
    Filed: May 5, 1976
    Date of Patent: November 24, 1981
    Assignees: Henkel Kommanditgesellachaft auf Aktien, Deutsche Gold- und Silber-Scheideanstalt
    Inventors: Wolfgang Giede, Karlheinz Koch, Gerhard Kolaczinski, Wolfgang Rupilius, Werner Stein
  • Patent number: 4275235
    Abstract: Quaternary ammonium halides in powder or granular form are prepared by reacting tertiary amines and excess alkyl halides in the absence of solvent at elevated temperature and pressure and conducting the hot, pressurized reaction mixture into an area under lower pressure where the excess alkyl halides vaporize and the quaternary ammonium halides are recovered in powder or granular form.
    Type: Grant
    Filed: November 16, 1979
    Date of Patent: June 23, 1981
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Wolfgang Giede, Horst Rutzen