Patents by Inventor Jacobus Stark

Jacobus Stark 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: 20110047654
    Abstract: The present invention relates to the treatment of banana and potato plants with a composition containing natamycin and at least one phosphite containing compound.
    Type: Application
    Filed: December 19, 2008
    Publication date: February 24, 2011
    Inventors: Jacobus Stark, Ferdinand Theodorus Jozef Van Rijn, Wilhelmus Maria Van Der Krieken, Lucas Henricus Stevens
  • Patent number: 7824882
    Abstract: Provided is a test system, a test method and a test kit for the determination of the presence of an antibiotic in a fluid based on a test medium comprising a test organism, at least one substance that provides a solid state, nutrients and an indicator, wherein the end-pH of said test medium at or after the time required for said determination is equal to or higher than 7.2 Said pH value can be realized by adding oligosaccharides, preferably a disaccharide or trisaccharide (eg. Lactose, gentobiose, maltotriose). Most preferably, said oligosaccharide is a non-reducing oligosaccharide (eg. Raffinose, sucrose or trehalose).
    Type: Grant
    Filed: June 2, 2005
    Date of Patent: November 2, 2010
    Assignee: DSM IP Assets B.V.
    Inventors: Pieter Cornelis Langeveld, Johannes Theodorus Arie van Pelt, Jacobus Stark, Tim de Graaf
  • Patent number: 7816332
    Abstract: The present invention provides an aqueous composition comprising—water; —a water miscible solvent; —and a polyene fungicide which is dissolved in the water and water miscible solvent. The present invention further provides a method for the production of the composition of the invention. The composition of the invention may be used as an antifungal treatment for a variety of products including food, feed, agricultural products, growth substrates and in- or outsides of buildings.
    Type: Grant
    Filed: June 1, 2004
    Date of Patent: October 19, 2010
    Assignee: DSM IP Assets B.V.
    Inventors: Jacobus Stark, Ferdinand Theodorus Jozef Van Rijn
  • Patent number: 7736588
    Abstract: Detection arrangement and method for detecting presence of a residue in a sample include determining color values of the sample, associated with the L*a*b color model. A value of a composite parameter Z is calculated as follows: A=wL+waa+wbb where wL, wa and wb are weighting factors having a value depending on the residue and the sample. A determination is made whether or not the sample comprises more or less than a predetermined amount of the residue in dependence on the value of the composition parameter Z. In a preferred embodiment, the arrangement is used to detect antibiotic residues, e.g. penicillin-G, in food products, elg. Milk, or body fluids, e.g. blood, urine.
    Type: Grant
    Filed: October 10, 2002
    Date of Patent: June 15, 2010
    Assignee: DSM IP Assets B.V.
    Inventors: Pieter Cornelis Langeveld, Karl Heinrich Van Hemert, Johannes Hendrik Pieter Machiel Kerkhof, Jacobus Stark
  • Publication number: 20100050512
    Abstract: The present invention relates to a process for the treatment of an agricultural product which comprises the addition of a composition which comprises phosphite and natamycin to the agricultural product wherein the composition comprises preferably less than 0.1 g lignosulphonate, more preferably less than 0.1 g polyphenol, per gram natamycin and is still more preferably free of lignosulphonate and most preferably free of polyphenol.
    Type: Application
    Filed: July 16, 2007
    Publication date: March 4, 2010
    Inventors: Jacobus Stark, Ferdinand Theodorus Jozef Van Bijn, Wilhelmus Maria Van Der Krieken, Lucas Henricus Stevens
  • Publication number: 20100050299
    Abstract: The present invention relates to the treatment of wounds occurring from cutting bananas and pineapples from a tree with a composition containing natamycin and at least one phosphite containing compound.
    Type: Application
    Filed: December 6, 2007
    Publication date: February 25, 2010
    Inventors: Jacobus Stark, Ferdinand Theodorus Josef van Rijn, Jan Hendrik Hunik
  • Publication number: 20090306905
    Abstract: The present invention provides a detection arrangement for detecting presence of an analyte in a sample, comprising a processor, a memory, a display, and a color measuring device, characterized in that a means is present for maintaining a constant temperature or a temperature profile of said sample.
    Type: Application
    Filed: February 7, 2007
    Publication date: December 10, 2009
    Inventors: Jacobus Stark, Pieter Cornelis Langeveld, Bastiaan Groen, Tim de Graaf, Willem Plugge
  • Publication number: 20090264379
    Abstract: The invention provides an aqueous composition comprising a dissolved polyene fungicide and a solubilizer, wherein at least 100 ppm of polyene fungicide is present as dissolved polyene fungicide. The aqueous compositions of the invention may further comprise a chelating and/or antioxidation agent. The compositions of the invention provide dissolved polyene fungicides in a more stable form. The present invention further provides uses of the compositions of the inventions and methods of making such compositions.
    Type: Application
    Filed: May 18, 2009
    Publication date: October 22, 2009
    Applicant: DSM IP ASSETS B.V.
    Inventors: Ben Rudolf de Haan, Jacobus Stark, Hong Sheng Tan
  • Publication number: 20090042240
    Abstract: The present invention relates to a novel method for the rapid detection of the presence or absence of antimicrobial drug residues belonging to the class of the quinolones in liquid samples such as milk, meat juice, serum, urine, blood, eggs or extracts obtained from animal tissues or food products.
    Type: Application
    Filed: February 21, 2007
    Publication date: February 12, 2009
    Inventors: Jacobus Stark, Angelique de. Rijk
  • Patent number: 7462464
    Abstract: The present invention relates to a novel method for the rapid detection of the presence or absence of antimicrobial residues in products preferably food products.
    Type: Grant
    Filed: October 3, 2000
    Date of Patent: December 9, 2008
    Assignee: DSM IP Assets B.V.
    Inventors: Pieter Cornelis Langeveld, Jacobus Stark, Petrus Andreas Van Paridon
  • Publication number: 20080020420
    Abstract: Provided is a test system, a test method and a test kit for the determination of the presence of an antibiotic in a fluid based on a test medium comprising a test organism, at least one substance that provides a solid state, nutrients and an indicator, wherein the end-pH of said test medium at or after the time required for said determination is equal to or higher than 7.2 Said pH value can be realized by adding oligosaccharides, preferably a disaccharide or trisaccharide (eg. Lactose, gentobiose, maltotriose). Most preferably, said oligosaccharide is a non-reducing oligosaccharide (eg. Raffinose, sucrose or trehalose).
    Type: Application
    Filed: June 2, 2005
    Publication date: January 24, 2008
    Inventors: Pieter Cornelis Langeveld, Johannes Theodorus Arie Pelt, Jacobus Stark, Tim Graaf
  • Patent number: 7308141
    Abstract: Method and arrangement to locate an object with a predetermined number of marks, the arrangement comprising a light source, a sensor and a processor, by means of the following steps:—illuminating the object with the light source;—receiving an image of the object and generate image pixel data including image pixel locations and image pixel intensities for each image pixel location with said sensor;—receiving the image pixel data and storing them in a memory;—comparing said image pixel intensities with a predetermined threshold;—determining object position based on said comparing;—using a digital match mask that corresponds with said object with said marks;—finding a best match between said digital match mask and said object on said object position;—determining mark positions within said object position from said best match.
    Type: Grant
    Filed: October 10, 2002
    Date of Patent: December 11, 2007
    Assignee: DSM IP Assets B.V.
    Inventors: Pieter Cornelis Langeveld, Karl Heinrich Van Hemert, Johannes Hendrik Pieter Machiel Kerkhof, Jacobus Stark
  • Publication number: 20070264394
    Abstract: The present invention describes a process to preserve a water-containing product such as a foodstuff, which comprises adding natamycin and nisin to the product, whereby at least 90% (w/v) of natamycin is dissolved and/or less than 10% (w/v) of natamycin is present in crystal form.
    Type: Application
    Filed: September 19, 2005
    Publication date: November 15, 2007
    Applicant: DSM IP ASSETS B.V.
    Inventors: Nicole Liliane Dutreux, Ben Rudolf Hann De, Jacobus Stark
  • Publication number: 20070123476
    Abstract: The present invention relates to a process to treat banana plants against disease wherein a polyene antibiotic is applied on the plant. In particular a process is described to protect banana crops from the devastating Sigatoka and Panama diseases. To that effect, banana plants are treated with a preparation comprising an amount of a polyene antibiotic effective to prevent or inhibit mould growth, especially M. fijensis and Fusarium oxysporum f sp. cubense.
    Type: Application
    Filed: January 31, 2005
    Publication date: May 31, 2007
    Inventors: Angelina Dekker, Nicole Dutreux, Jacobus Stark
  • Publication number: 20070031915
    Abstract: The present invention provides a test medium comprising a test microorganism, an indicator and a metal in ionized form, wherein the valence of said metal is at least 2 and the concentration of said metal is between 0.001 M and 1 M. Furthermore, there is provided a method for the determination of the presence of an antibiotic characterized in that a metal salt is added to said test medium and/or to said sample of fluid. Finally, there is provided a kit suitable for the determination of an antibiotic in a fluid.
    Type: Application
    Filed: September 6, 2004
    Publication date: February 8, 2007
    Applicant: DSM IP ASSETS B.V.
    Inventors: Edith Geijp, Jacobus Stark
  • Publication number: 20060241061
    Abstract: The present invention provides an aqueous composition comprising—water; —a water miscible solvent; —and a polyene fungicide which is dissolved in the water and water miscible solvent. The present invention further provides a method for the production of the composition of the invention. The composition of the invention may be used as an antifungal treatment for a variety of products including food, feed, agricultural products, growth substrates and in- or outsides of buildings.
    Type: Application
    Filed: June 1, 2004
    Publication date: October 26, 2006
    Inventors: Jacobus Stark, Ferdinand Theodorus Jozef Rijn
  • Publication number: 20060073249
    Abstract: The invention provides an aqueous composition comprising a dissolved polyene fungicide and a solubilizer, wherein at least 100 ppm of polyene fungicide is present as dissolved polyene fungicide. The aqueous compositions of the invention may further comprise a chelating and/or antioxidation agent. The compositions of the invention. provide dissolved polyene fungicides in a more stable form. The present invention further provides uses of the compositions of the inventions and methods of making such compositions.
    Type: Application
    Filed: March 19, 2004
    Publication date: April 6, 2006
    Inventors: Ben Rudolf Haan, Jacobus Stark, Hong Sheng Tan
  • Publication number: 20050123584
    Abstract: The present invention discloses a method for the treatment of a food, feed or agricultural product with a dry powder composition comprising a polyene antifungal compound, the method comprising:—adding the dry powder composition to the food, feed or agricultural product;and—adding an aqueous composition to the food, feed or agricultural product.
    Type: Application
    Filed: December 18, 2002
    Publication date: June 9, 2005
    Inventors: Martinus Johannes Warmerdam, Ferdinand Theodorus Rijn Van, Jacobus Stark
  • Publication number: 20050112251
    Abstract: The present invention relates to a liquid which have been treated with an electroporation method and which comprises an effective amount of our antifungal compound.
    Type: Application
    Filed: February 25, 2003
    Publication date: May 26, 2005
    Inventors: Jacobus Stark, Nicole Dutreux
  • Patent number: 6867015
    Abstract: The present invention relates to a microbioligcal test method for detecting antibacterial compounds in liquid samples such as milk, meat juice, serum and urine. The method employs an acid-base or redox indicator to detect growth of a test organism and is characterised in that a thermophilic strain of Bacillus or Streptococcus, e.g. Bacillus stearothermophilus var. calidolactis C953, is employed at a concentration of above 107 CFU/ml, preferably between 2×107 and 3×108 CFU/ml.
    Type: Grant
    Filed: February 1, 1996
    Date of Patent: March 15, 2005
    Assignee: Gist-Brocades B.V.
    Inventors: Pieter Cornelis Langeveld, Robert Beukers, Michiel Wilhelmus Christianus Bommele, Jacobus Stark