Patents by Inventor Jan van Leeuwen

Jan van Leeuwen 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: 20190066107
    Abstract: A computer-implemented method of authenticating an operation using a smart card, the smart card comprising respective information elements for authenticating respective ones of plural operations, each information element being associated with a respective security element, the method comprising (a) receiving an input from a user, (b) attempting to validate the input for each of the respective security elements, and (c) upon successful validation with one of the respective security elements, authenticating the operation using the information element for the one of the plural operations with which said one of the respective security elements is associated. Also a device, a smart card and a computer program.
    Type: Application
    Filed: August 30, 2018
    Publication date: February 28, 2019
    Inventors: Geert-Jan VAN LEEUWEN, Patrick DE WIT, Alexander GURETZKI, Ali NIKNAM
  • Publication number: 20170029549
    Abstract: Methods of producing a latex, and the resulting latexes, are described herein. Bio-based colloidal particles are used in a free radical polymerization process. The particles may provide one or more of a seed particle, stabilizing agent, Pickering emulsifier, surfactant or co-monomer. Optionally, the particles (or biopolymer molecules such as starch in the particles) are functionalized, for example to provide double bonds or free radicals, prior to or while conducting a free radical polymerization reaction including the particles and a second compound which is a monomer. In another option, the particles are used in the presence of a functionalizing agent (capable for example of providing double bonds or free radicals on a biopolymer) in a free radical polymerization reaction. Optionally, the resulting latex may include particles of a mixed morphology including a bio-based phase.
    Type: Application
    Filed: October 12, 2016
    Publication date: February 2, 2017
    Inventors: Steven BLOEMBERGEN, Jan VAN LEEUWEN, Niels Mathieu Barbara SMEETS, Vahid NOEEI ANCHEH, Julien Francois Marie Antoine Philippe MESNAGER, Do Ik LEE
  • Patent number: PP26255
    Abstract: A new cultivar of Phlox, ‘Blind Lion’ that is characterized by its compact, upright plant habit and its flowers that remain in the bud stage and are dark purple in color and surrounded by dark purple bracts.
    Type: Grant
    Filed: March 17, 2014
    Date of Patent: December 22, 2015
    Inventor: Jan van Leeuwen
  • Patent number: PP30485
    Abstract: A new cultivar of Phlox, ‘Green Lion’ that is characterized by its inflorescences that are dark green in color, its compact plant habit, upright plant habit, its flower buds do not open, its high resistance to powdery mildew, its long lasting ornamental value, and its suitability as a garden plant and as a cut flower.
    Type: Grant
    Filed: February 27, 2018
    Date of Patent: May 7, 2019
    Assignee: VAN LEEUWEN BLOEMEN BV
    Inventor: Jan van Leeuwen