Patents by Inventor James T. Kellis, Jr.

James T. Kellis, Jr. 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).

  • Publication number: 20100152087
    Abstract: The present invention provides a subtilisin variant that is particularly well suited to cleaning applications. In particular, the present invention provides a Bacillus sp. subtilisin variant and cleaning compositions comprising this variant.
    Type: Application
    Filed: November 10, 2009
    Publication date: June 17, 2010
    Inventors: Luis G. Cascao-Pereira, David A. Estell, Frits Goedegebuur, James T. Kellis, JR., Ayrookaran J. Poulise
  • Publication number: 20100048446
    Abstract: Described are variants (mutants) of a parent alpha-amylase having alpha-amylase activity and exhibiting altered properties relative to the parent alpha-amylase, and methods of use, thereof.
    Type: Application
    Filed: February 4, 2009
    Publication date: February 25, 2010
    Applicant: DANISCO US INC., GENENCOR DIVISION
    Inventors: Luis G. Cascao-Pereira, Claudine Chang, Clement Choy, James T. Kellis, JR., Brian E. Jones, Melodie Estabrook, Marc Kolkman, Chris Leeflang, Casper Vroemen, Walter Weyler
  • Publication number: 20090252828
    Abstract: Disclosed are compositions comprising variants of alpha-amylase that have alpha-amylase activity and which exhibit altered properties relative to a parent AmyS-like alpha-amylase from which they are derived. The compositions comprise an additional enzyme such as a phytase. Also disclosed are methods of using the compositions, and kits related thereto.
    Type: Application
    Filed: November 3, 2008
    Publication date: October 8, 2009
    Applicant: Danisco US Inc., Genencor Division
    Inventors: Luis G. Cascao-Pereira, James T. Kellis, JR., Bradley A. Paulson, Scott D. Power, Sandra W. Ramer, Vivek Sharma, Andrew Shaw, Jayarama K. Shetty, Donald E. Ward
  • Publication number: 20090011489
    Abstract: Novel enzyme variants including protease variants derived from the DNA sequences of naturally-occurring or recombinant non-human proteases are disclosed. The variant proteases, in general are obtained by in vitro modification of a precursor DNA sequence encoding the naturally-occurring or recombinant protease to generate the substitution of a plurality of amino acid residues in the amino acid sequence of a precursor protease, Such variant proteases have properties which are different from those of the precursor protease, such as altered wash performance. The substituted amino acid residue correspond to positions 27, 45, 170, 181, 251 and 271 of Bacillus amyloliquefaciens subtilisin. Additional variants comprising at least one additional substitution at a position selected from 1, 14, 49, 61, 87, 100, 102, 118, 128, 204 and 258 of Bacillus amyloliquefaciens subtilisin are also described.
    Type: Application
    Filed: October 30, 2007
    Publication date: January 8, 2009
    Inventors: Ayrookaran J. Poulose, David A. Estell, James T. Kellis, JR., Richard R. Bott
  • Patent number: 7306937
    Abstract: Novel enzyme variants including protease variants derived from the DNA sequences of naturally-occurring or re-combinant non-human proteases are disclosed. The variant proteases, in general, are obtained by in vitro modification of a precursor DNA sequence encoding the naturally-occurring or recombinant protease to generate the substitution of a plurality of amino acid residues in the amino acid sequence of a precursor protease. Such variant proteases have properties which are different from those of the precursor protease, such as altered wash performance. The substituted amino acid residue correspond to positions 27, 45, 170, 181, 251 and 271 of Bacillus amyloliquefaciens subtilisin. Additional variants comprising at least one additional substitution at a position selected from 1, 14, 49, 61, 87, 100, 102, 118, 128, 204 and 258 of Bacillus amyloliquefaciens subtilisin are also described.
    Type: Grant
    Filed: January 16, 2003
    Date of Patent: December 11, 2007
    Assignee: Genencor International, Inc.
    Inventors: Ayrookaran J. Poulose, David A Estell, James T Kellis, Jr., Richard R. Bott
  • Patent number: 7129076
    Abstract: Novel protease variants derived from the DNA sequences of naturally-occurring or recombinant non-human proteases are disclosed. The variant proteases, in general, are obtained by in vitro modification of a precursor DNA sequence encoding the naturally-occurring or recombinant protease to generate the substitution of a plurality of amino acid residues in the amino acid sequence of a precursor protease. Protease variants are provided that contain substitutions of the amino acids at one or more residue positions so that the substitution alters the charge at that position to make the charge more negative or less positive compared to a precursor protease and thus the protease variant is more effective in a low detergent concentration system than a precursor protease.
    Type: Grant
    Filed: April 25, 2003
    Date of Patent: October 31, 2006
    Assignee: Genencor International, Inc.
    Inventors: Ayrookaran J. Poulose, Volker Schellenberger, James T. Kellis, Jr., Christian Paech, Joanne Nadherny, Donald P. Naki, Katherine D. Collier, Robert M. Caldwell
  • Patent number: 7122334
    Abstract: A microtiter method for assaying the wash performance of new enzymes and/or new detergent formulations is described.
    Type: Grant
    Filed: July 26, 2004
    Date of Patent: October 17, 2006
    Assignee: Genencor International, Inc.
    Inventors: Volker Schellenberger, Donald P. Naki, Katherine D. Collier, James T. Kellis, Jr., Joanne Nadherny
  • Patent number: 6933140
    Abstract: A polyesterase enzyme which produces a positive result in an UV and/or MB assay is used to treat polyester to modify polyester properties such as pilling, pilling prevention, weight, feel, appearance and luster.
    Type: Grant
    Filed: November 5, 1999
    Date of Patent: August 23, 2005
    Assignee: Genencor International, Inc.
    Inventors: Wade Dyson, James T. Kellis, Jr., Ayrookaran J. Poulose, Mee-Young Yoon
  • Patent number: 6927055
    Abstract: Novel protease variants derived from the DNA sequences of naturally-occurring or recombinant non-human proteases are disclosed. The variant proteases, in general, are obtained by in vitro modification of a precursor DNA sequence encoding the naturally-occurring or recombinant protease to generate the substitution of a plurality of amino acid residues in the amino acid sequence of a precursor protease. Such variant proteases have properties which are different from those of the precursor protease, such as altered wash performance. The substituted amino acid residue correspond to positions 62, 212, 230, 232, 252 and 257 of Bacillus amyloliquefaciens subtilisin.
    Type: Grant
    Filed: August 27, 2002
    Date of Patent: August 9, 2005
    Assignee: Genencor International, Inc.
    Inventors: Ayrookaran J. Poulose, Volker Schellenberger, James T. Kellis, Jr., Christian Paech, Joanne Nadherny, Donald P. Naki, Katherine D. Collier, Robert M. Caldwell, André C. Baeck
  • Patent number: 6838425
    Abstract: The present invention relates to cleaning compositions comprising a protease variant.
    Type: Grant
    Filed: January 15, 2002
    Date of Patent: January 4, 2005
    Assignee: The Procter & Gamble Company
    Inventors: Chanchal Kumar Ghosh, André Cesar Baeck, Ryohei Ohtani, Alfred Busch, Michael Stanford Showell, Ayrookaran J. Poulose, Volker Schellenberger, James T. Kellis, Jr., Christian Paech, Joanne Nadherny, Donald P. Naki, Katherine D. Collier, Robert M. Caldwell
  • Patent number: 6831053
    Abstract: The present invention relates to bleaching compositions comprising a protease variant.
    Type: Grant
    Filed: April 20, 2000
    Date of Patent: December 14, 2004
    Assignee: The Procter & Gamble Company
    Inventors: Chanchal Kumar Ghosh, André Cesar Baeck, Ryohei Ohtani, Alfred Busch, Michael Stanford Showell, Ayrookaran J. Poulose, Volker Schellenberger, James T. Kellis, Jr., Christian Paech, Joanne Nadherny, Donald P. Naki, Katherine D. Collier, Robert M. Caldwell
  • Patent number: 6815193
    Abstract: Novel protease variants derived from the DNA sequences of naturally-occurring or recombinant non-human proteases are disclosed. The variant proteases, in general, are obtained by in vitro modification of a precursor DNA sequence encoding the naturally-occurring or recombinant protease to generate the substitution of a plurality of amino acid residues in the amino acid sequence of a precursor protease. Such variant proteases have properties which are different from those of the precursor protease, such as altered wash performance.
    Type: Grant
    Filed: November 2, 2001
    Date of Patent: November 9, 2004
    Assignee: Genencor International, Inc.
    Inventors: Ayrookaran J. Poulose, Volker Schellenberger, James T. Kellis, Jr., Christian Paech, Joanne Nadherny, Donald P. Naki, Katherine D. Collier, Robert M. Caldwell, André C. Baeck
  • Patent number: 6673590
    Abstract: Novel protease variants derived from the DNA sequences of naturally-occurring or recombinant non-human proteases are disclosed. The variant proteases, in general, are obtained by in vitro modification of a precursor DNA sequence encoding the naturally-occurring or recombinant protease to generate the substitution of a plurality of amino acid residues in the amino acid sequence of a precursor protease. Protease variants are provided that contain substitutions of the amino acids at one or more residue positions so that the substitution alters the charge at that position to make the charge more negative or less positive compared to a precursor protease and thus the protease variant is more effective in a low detergent concentration system than a precursor protease.
    Type: Grant
    Filed: October 23, 1998
    Date of Patent: January 6, 2004
    Assignee: Genencor International, Inc.
    Inventors: Ayrookaran .J. Poulose, Volker Schellenberger, James T. Kellis, Jr., Christian Paech, Joanne Nadherny, Donald P. Naki, Katherine D. Collier, Robert M. Caldwell
  • Patent number: 6610642
    Abstract: The present invention relates to cleaning compositions comprising a protease variant.
    Type: Grant
    Filed: August 6, 2001
    Date of Patent: August 26, 2003
    Assignee: The Procter and Gamble Company
    Inventors: Chanchal Kumar Ghosh, André Cesar Baeck, Ryohei Ohtani, Alfred Busch, Michael Stanford Showell, Ayrookaran J. Poulose, Volker Schellenberger, James T. Kellis, Jr., Christian Paech, Joanne Nadherny, Donald P. Naki, Katherine D. Collier, Robert M. Caldwell
  • Patent number: 6482628
    Abstract: Novel protease variants derived from the DNA sequences of naturally-occurring or recombinant non-human proteases are disclosed. The variant proteases, in general, are obtained by in vitro modification of a precursor DNA sequence encoding the naturally-occurring or recombinant protease to generate the substitution of a plurality of amino acid residues in the amino acid sequence of a precursor protease. Such variant proteases have properties which are different from those of the precursor protease, such as altered wash performance. The substituted amino acid residue correspond to positions 62, 212, 230, 232, 252 and 257 of Bacillus amyloliquefaciens subtilisin.
    Type: Grant
    Filed: October 23, 1998
    Date of Patent: November 19, 2002
    Assignee: Genencor International, Inc.
    Inventors: Ayrookaran J. Poulose, Volker Schellenberger, James T. Kellis, Jr., Christian Paech, Joanne Nadherny, Donald P. Naki, Katherine D. Collier, Robert M. Caldwell, Andre C. Baeck
  • Patent number: 6376450
    Abstract: The present invention relates to cleaning compositions comprising a protease variant.
    Type: Grant
    Filed: April 20, 2000
    Date of Patent: April 23, 2002
    Inventors: Chanchal Kumar Ghosh, AndréCesar Baeck, Ryohei Ohtani, Alfred Busch, Michael Stanford Showell, Ayrookaran J. Poulose, Volker Schellenberger, James T. Kellis, Jr., Christian Paech, Joanne Nadherny, Donald P. Naki, Katherine D. Collier, Robert M. Caldwell
  • Patent number: 6312936
    Abstract: Novel protease variants derived from the DNA sequences of naturally-occurring or recombinant non-human proteases are disclosed. The variant proteases, in general, are obtained by in vitro modification of a precursor DNA sequence encoding the naturally-occurring or recombinant protease to generate the substitution of a plurality of amino acid residues in the amino acid sequence of a precursor protease. Such variant proteases have properties which are different from those of the precursor protease, such as altered wash performance.
    Type: Grant
    Filed: October 23, 1998
    Date of Patent: November 6, 2001
    Assignee: Genencor International, Inc.
    Inventors: Ayrookaran J. Poulose, Volker Schellenberger, James T. Kellis, Jr., Christian Paech, Joanne Nadherny, Donald P. Naki, Katherine D. Collier, Robert M. Caldwell, André C. Baeck
  • Patent number: 6254645
    Abstract: A method is provided for improving the uptake of a cationic compound onto a polyester article starting material, comprising the steps of: (a) obtaining a polyesterase enzyme; (b) contacting said polyesterase enzyme with said polyester article starting material under conditions and for a time suitable for said polyesterase to produce surface modification of said polyester article starting material and produce a surface modified polyester; (c) contacting said modified polyester article, subsequently or simultaneously with said step (b) with a cationic compound whereby adherence of said cationic compound to said modified polyester is increased compared to said polyester starting material. Also disclosed is a method for increasing the hydrophilicity of a polyester to improve fabric characteristics such as stain resistance, wettability and/or dyeability.
    Type: Grant
    Filed: November 5, 1999
    Date of Patent: July 3, 2001
    Assignee: Genencor International, Inc.
    Inventors: James T. Kellis, Jr., Ayrookaran J. Poulose, Mee-Young Yoon