Patents by Inventor Steven L. Clauss

Steven L. Clauss 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: 7759096
    Abstract: A process for enzymatic production of glyceride compositions, specifically industrially practicable production of triglycerides, including conjugated linoleic and linolenic acid triglycerides, and the compositions produced by such process. An enzymatic reaction zone is first utilized, in which a mixture of glycerol and fatty acids or fatty acid derivatives is reacted in the presence of an enzymatic catalyst to form 1,3 diglycerides. The mixture is then circulated through a second thermal rearrangement zone, maintained at a higher temperature, to promote rearrangement of the 1,3 diglycerides to 1,2 diglycerides. Triglycerides are produced by re-circulating the mixture through the enzymatic production zone.
    Type: Grant
    Filed: January 29, 2004
    Date of Patent: July 20, 2010
    Assignee: Stepan Company
    Inventors: Jenifer Heydinger Galante, Steven L. Clauss, Randal J. Bernhardt, Alfred K. Schultz
  • Publication number: 20090131701
    Abstract: A process for enzymatic production of glyceride compositions, specifically industrially practicable production of triglycerides, including conjugated linoleic and linolenic acid triglycerides, and the compositions produced by such process. An enzymatic reaction zone is first utilized, in which a mixture of glycerol and fatty acids or fatty acid derivatives is reacted in the presence of an enzymatic catalyst to form 1,3 diglycerides. The mixture is then circulated through a second thermal rearrangement zone, maintained at a higher temperature, to promote rearrangement of the 1,3 diglycerides to 1,2 diglycerides. Triglycerides are produced by re-circulating the mixture through the enzymatic production zone.
    Type: Application
    Filed: January 29, 2004
    Publication date: May 21, 2009
    Applicant: STEPAN COMPANY
    Inventors: Jenifer Heydinger Galante, Steven L. Clauss, Randal J. Bernhardt, Alfred K. Schultz
  • Patent number: 6897327
    Abstract: A process to manufacture conjugated linoleic acid (CLA)-containing materials such as conjugated linoleic salts and acids that are enriched in desirable cis-9, trans-11- and trans-10, cis-12-CLA isomers and are low in certain undesirable isomers. The process generally entails isomerization of an alkyl ester of a linoleic acid-containing material at a temperature typically between about 90 to 140° C. to effectuate conjugation of the double bonds, followed by saponification of the resultant CLA-containing fatty acid ester to produce a CLA-containing fatty acid salt, optionally followed by neutralization of the CLA-containing fatty acid salt with an acid source to produce a CLA-containing fatty acid.
    Type: Grant
    Filed: May 8, 2003
    Date of Patent: May 24, 2005
    Assignee: Stepan Company
    Inventors: Joseph C. Rongione, Jenifer Heydinger Galante, Steven L. Clauss, Randal J. Bernhardt, Phouvieng Xayariboun
  • Publication number: 20040225141
    Abstract: A process to manufacture conjugated linoleic acid (CLA)-containing materials such as conjugated linoleic salts and acids that are enriched in desirable cis-9, trans-11- and trans-10, cis-12-CLA isomers and are low in certain undesirable isomers. The process generally entails isomerization of an alkyl ester of a linoleic acid-containing material at a temperature typically between about 90 to 140° C. to effectuate conjugation of the double bonds, followed by saponification of the resultant CLA-containing fatty acid ester to produce a CLA-containing fatty acid salt, optionally followed by neutralization of the CLA-containing fatty acid salt with an acid source to produce a CLA-containing fatty acid.
    Type: Application
    Filed: May 8, 2003
    Publication date: November 11, 2004
    Inventors: Joseph C. Rongione, Jenifer Heydinger Galante, Steven L. Clauss, Randal J. Bernhardt, Phouvieng Xayariboun
  • Publication number: 20040225143
    Abstract: A process to manufacture conjugated linoleic acid (CLA)-containing materials such as conjugated linoleic salts and acids that are enriched in desirable cis-9, trans-11- and trans-10, cis-12-CLA isomers and are low in certain undesirable isomers. The process generally entails isomerization of an alkyl ester of a linoleic acid-containing material at a temperature typically between about 90 to 140° C. to effectuate conjugation of the double bonds, followed by saponification of the resultant CLA-containing fatty acid ester to produce a CLA-containing fatty acid salt, followed by neutralization of the CLA-containing fatty acid salt with an acid source to produce a CLA-containing fatty acid.
    Type: Application
    Filed: June 4, 2004
    Publication date: November 11, 2004
    Inventors: Joseph C. Rongione, Jenifer Heydinger Galante, Steven L. Clauss, Randal J. Bernhardt, Phouvieng Xayariboun
  • Patent number: 5438071
    Abstract: A storage stable porfimer sodium (polyhematoporphyrin ether/ester) composition useful in the photodynamic therapy of cancer and other conditions is provided. The composition is characterized in that the percentage of ester linked porphyrin oligomers is less than 10% of the composition. Improved processes for preparing such compositions are also provided wherein acetylated hematoporphyrin is treated with alkali for sufficient time and temperature to reduce the amount of porphyrin oligomers joined by ester linkages to less than 10% of the composition.
    Type: Grant
    Filed: June 10, 1993
    Date of Patent: August 1, 1995
    Assignee: American Cyanamid Company
    Inventors: Steven L. Clauss, Michael J. Pastel, Rainer K. Zawadzki
  • Patent number: 5244914
    Abstract: A storage stable porfimer sodium (polyhematoporphyrin ether/ester) composition useful in the photodynamic therapy of cancer and other conditions is provided. The composition is characterized in that the percentage of ester linked porphyrin oligomers is less than 10% of the composition. Improved processes for preparing such compositions are also provided wherein acetylated hematoporphyrin is treated with alkali for sufficient time and temperature to reduce the amount of porphyrin oligomers joined by ester linkages to less than 10% of the composition.
    Type: Grant
    Filed: April 27, 1992
    Date of Patent: September 14, 1993
    Assignee: American Cyanamid Company
    Inventors: Steven L. Clauss, Michael J. Pastel, Rainer K. Zawadzki