Patents by Inventor Daniel Convents

Daniel Convents 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: 9080157
    Abstract: The use of VHHs in the preparation of products to provide stability of antibody specificity under destabilizing conditions whereby normally lower eukaryotes or traditional antibodies are killed or inactivated.
    Type: Grant
    Filed: May 2, 2012
    Date of Patent: July 14, 2015
    Assignee: BAC IP B.V.
    Inventors: Daniel Convents, Leo G. Frenken, Michael M. Harmsen, Richard H. van der Linden, Cornelis T. Verrips
  • Patent number: 8951755
    Abstract: The use of VHHs in the preparation of products to provide stability of antibody specificity under destabilizing conditions whereby normally lower eukaryotes or traditional antibodies are killed or inactivated.
    Type: Grant
    Filed: March 12, 1999
    Date of Patent: February 10, 2015
    Assignee: BAC IP B.V.
    Inventors: Daniel Convents, Leo G. Frenken, Michael M. Harmsen, Richard H. van der Linden, Cornelis T. Verrips
  • Publication number: 20120309054
    Abstract: The use of VHHs in the preparation of products to provide stability of antibody specificity under destabilising conditions whereby normally lower eukaryotes or traditional antibodies are killed or inactivated.
    Type: Application
    Filed: May 2, 2012
    Publication date: December 6, 2012
    Inventors: Daniel Convents, Leo G. Frenken, Michael M. Harmsen, Richard M. van der Linden, Cornelis T. Verrips
  • Patent number: 6689738
    Abstract: There is provided an enzymatic oxidation composition and process wherein an oxidisable substance is reacted with (a) a compound having the formula: and (b) molecular oxygen, in the absence of peroxidase. The process is useful in detergent compositions for stain bleaching and/or anti dye-transfer.
    Type: Grant
    Filed: October 24, 2001
    Date of Patent: February 10, 2004
    Assignee: Unilever Home and Personal Care USA Division of Conopco, Inc.
    Inventors: Daniel Convents, Monique Doornink, Richard George Smith, David William Thornthwaite
  • Publication number: 20020165113
    Abstract: The present invention provides detergent compositions comprising variants of precursor phenol oxidizing enzymes, said precursor being derived from a Stachybotrys species. The precursor enzymes can be, for example, naturally-occurring or recombinant phenol oxidizing enzymes. The variant enzymes, in general, are obtained by modification of a precursor DNA sequence encoding the naturally-occurring or recombinant phenol oxidizing enzyme to generate the substitution of one or more amino acids in the encoded amino acid sequence. Variant enzymes are disclosed having properties which differ from those of their respective precursor enzymes, e.g., altered pH optima and/or phenol oxidizing activity and/or altered stability. The variant enzymes of the present invention are especially useful in detergent formulations, for example, to modify (bleach) the color associated with colored compounds.
    Type: Application
    Filed: August 29, 2001
    Publication date: November 7, 2002
    Applicant: Unilever Home & Personal Care USA, Division of Conopco, Inc.
    Inventors: Wolfgang Aehle, Daniel Convents, Monique Doornink, Franciscus Van Gastel, Ana Milena Rodriguez, Amr Toppozada, Cornelis Hendrikus De Vries, Huaming Wang
  • Publication number: 20020119900
    Abstract: There is provided an enzymatic oxidation composition and process wherein an oxidisable substance is reacted with (a) a compound having the formula: 1
    Type: Application
    Filed: October 24, 2001
    Publication date: August 29, 2002
    Applicant: Unilever Home & Personal Care USA, Division of Conopco, Inc.
    Inventors: Daniel Convents, Monique Doornink, Richard George Smith, David William Thornthwaite
  • Patent number: 6384007
    Abstract: There is provided a process for enhancing the activity of a phenol oxidizing enzyme, comprising adding to the enzyme, as an enhancer for the activity of said enzyme, one or more compounds having the having the formula: wherein Z1 and Z2 are electron withdrawing groups, independently selected from the group consisting of optionally substituted alkyl/(hetero)aryl- -sulfone, -sulfoxide, -sulfonate, -carbonyl, -oxalyl, -amidoxalyl, -hydrazidoxalyl, -carboxyl and esters and salts thereof, -amidyl, -hydrazidyl, nitrile. The process is especially useful for removing colored stains from fabrics in a washing process.
    Type: Grant
    Filed: November 9, 2000
    Date of Patent: May 7, 2002
    Assignee: Unilever Home & Personal USA division of Conopco, Inc.
    Inventors: Daniel Convents, Monique Doornink, Jean Hypolites Koek, David William Thornthwaite, Nicole Zwets
  • Patent number: 6380146
    Abstract: There is provided a bleaching detergent composition comprising one or more surfactants, a phenol oxidizing enzyme and a compound which acts as enhancer for the phenol oxidizing enzyme, said composition having an Enhancer Index as herein defined of at least 12 and prefereably in the range of 15-50.
    Type: Grant
    Filed: June 20, 2000
    Date of Patent: April 30, 2002
    Assignee: Unilever Home & Personal Care USA a division of Conopco, Inc.
    Inventors: Greta Johanna Breel, Daniel Convents, Willem Van Liemt, Ton Swarthoff, Robin Stefan Twisker
  • Patent number: 6352968
    Abstract: There is provided a detergent composition comprising one or more surfactants and a compound capable of binding to colored substances which may occur as stains on fabrics.
    Type: Grant
    Filed: September 28, 2000
    Date of Patent: March 5, 2002
    Assignee: Lever Brothers Company, division of Conopco, Inc.
    Inventors: Daniel Convents, Cornelis Theodorus Verrips
  • Publication number: 20020016279
    Abstract: There is provided an enzymatic oxidation composition and process wherein an oxidisable substance is reacted with (a) a peroxidase, (b) a compound which enhances the activity of the peroxidase and (c) molecular oxygen, said composition being essentially free from hydrogen peroxide and compounds capable of generating hydrogen peroxide. The process is useful in detergent compositions for stain bleaching and/or anti dye-transfer.
    Type: Application
    Filed: May 24, 2001
    Publication date: February 7, 2002
    Applicant: Unilever Home & Personal Care USA, Division of Conopco, Inc.
    Inventors: Daniel Convents, Monique Doornink, Monique van der Heiden, Jean Hypolities Koek, Richard George Smith, David William Thornthwaite, Sebastiaan van der Velden, Cornelis Hendrikus de Vries, Nicole Zwets
  • Patent number: 6323014
    Abstract: There is provided a process for enhancing the activity of a phenol oxidizing enzyme, comprising adding to the enzyme, as an enhancer for the activity of the enzyme, one or more compounds having the formula: wherein: A is an optionally substituted electron-withdrawing group, chosen from the group consisting of nitrile, carboxyl, and esters and salts thereof, amides, aldehydes, ketones, sulfoxides, sulfones, or sulphonates, and B is an optionally substituted electron-donating group, chosen from the group consisting of the oxide anion, sulfide anion, oxides, amines, imines, hydroxides, sulfides, ethers, carboxylic acids, and halogen substituents, and R1-R5 may each independently represent hydrogen, hydroxy, halogen, nitroso, formyl, carboxyl, and esters and salts thereof, carbamoyl, sulfo, and esters and salts hereof, sulfamoyl, nitro, amino, phenyl, C1-C20 alkyl, C1-C8 alkoxy, carbonyl-C1-C6-alkoxy, aryl-C1-C6-alkyl, and R2 and R5 together may form an alkylene group or an alkenylene group.
    Type: Grant
    Filed: June 20, 2000
    Date of Patent: November 27, 2001
    Assignee: Unilever Home & Personal Care division of Conopco, Inc.
    Inventors: Greta Johanna Breel, Daniel Convents, Willem Van Liemt, Ton Swarthoff, Robin Stefan Twisker
  • Publication number: 20010044397
    Abstract: There is provided a bleaching enzyme capable of generating a bleaching chemical and having a high binding affinity for non-colored compounds present in stains on fabrics, said non-colored compounds having a molecular weight of at least 100, preferably of at least 1,000 and more preferably of at least 5,000. Furthermore, there is provided an enzymatic bleaching composition comprising said bleaching enzyme and a surfactant and a process for bleaching stains present of fabrics.
    Type: Application
    Filed: February 15, 2001
    Publication date: November 22, 2001
    Applicant: Unilever Home & Personal Care USA, Division of Conopco, Inc.
    Inventors: Mark John Berry, Daniel Convents, Paul James Davis, Michael John Gidley, Cornelis Paul Van Der Logt
  • Patent number: 6277806
    Abstract: There is provided a bleaching enzyme capable of generating a bleaching chemical and having a high binding affinity for non-colored compounds present in stains on fabrics, said non-colored compounds having a molecular weight of at least 100, preferably of at least 1,000 and more preferably of at least 5,000. Furthermore, there is provided an enzymatic bleaching composition comprising said bleaching enzyme and a surfactant and a process for bleaching stains present of fabrics.
    Type: Grant
    Filed: December 8, 1999
    Date of Patent: August 21, 2001
    Assignee: Unilever Home & Personal Care USA, division of Conopco, Inc.
    Inventors: Mark John Berry, Daniel Convents, Paul James Davis, Michael John Gidley, Cornelis Paul Van Der Logt
  • Patent number: 6171345
    Abstract: There is provided a detergent composition comprising one or more surfactants and a compound capable of binding to coloured substances which may occur as stains on fabrics.
    Type: Grant
    Filed: June 25, 1997
    Date of Patent: January 9, 2001
    Assignee: Lever Brothers Company, division of Conopco, Inc.
    Inventors: Daniel Convents, Cornelis Theodorus Verrips
  • Patent number: 6080573
    Abstract: There is provided an enzymatic oxidation process wherein a substance which is to be oxidised is reacted with (a) an enzyme exhibiting peroxidase activity and a source of hydrogen peroxide or an enzyme exhibiting oxidase activity on phenolic compounds and (b) a compound which enhances the oxidation activity of the enzyme, characterized in that the compound specifically binds the substance which is to be oxidized. Furthermore, there is provided an enzymatic stain bleaching or anti dye-transfer composition comprising: (a) an enzyme exhibiting peroxidase activity and a source of hydrogen peroxide or an enzyme exhibiting oxidase activity on phenolic compounds and (b) a compound which enhances the oxidation activity of the enzyme and which is capable of binding selectively to a stain chromophore or textile dye in solution.
    Type: Grant
    Filed: November 25, 1997
    Date of Patent: June 27, 2000
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: Daniel Convents, Rudolf Willem Pieter van Drunen, Cornelis Theodorus Verrips
  • Patent number: 5872093
    Abstract: A detergent composition with excellent color care properties. The detergent composition comprises a dendritic macromolecule.
    Type: Grant
    Filed: December 12, 1996
    Date of Patent: February 16, 1999
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: Daniel Convents, Rudolf Willem Pieter van Drunen, Jean Hypolites Koek