Patents by Inventor Brahim KERKAR

Brahim KERKAR 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: 10265994
    Abstract: A banknote having one or more security features and at least one flexible printed electronic (FPE) element embedded in the banknote. At least one of the security features and at least one FPE element have an interrelationship with each other.
    Type: Grant
    Filed: September 1, 2015
    Date of Patent: April 23, 2019
    Assignee: SICPA HOLDING SA
    Inventors: Brahim Kerkar, Philippe Amon
  • Patent number: 9834031
    Abstract: Described is a chiral liquid crystal polymer (CLCP) layer or pattern which comprises randomly distributed craters of controlled mean diameter and/or density. The density and/or mean diameter of the craters can be controlled, for example, by adjusting the wetting of a substrate by a CLCP precursor composition, the development time of the precursor composition, and the thickness of the applied precursor composition.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: December 5, 2017
    Assignee: SICPA HOLDING SA
    Inventors: Tristan Jauzein, Brahim Kerkar
  • Patent number: 9773433
    Abstract: A packaging for smoking products having an area with a warning relating to the health hazards of smoking thereon. The area includes at least one marking that is suitable for identification and/or authentication and/or track and/or trace purposes.
    Type: Grant
    Filed: August 11, 2014
    Date of Patent: September 26, 2017
    Assignee: SICPA HOLDING SA
    Inventor: Brahim Kerkar
  • Publication number: 20170253069
    Abstract: A banknote having one or more security features and at least one flexible printed electronic (FPE) element embedded in the banknote. At least one of the security features and at least one FPE element have an interrelationship with each other.
    Type: Application
    Filed: September 1, 2015
    Publication date: September 7, 2017
    Inventors: Brahim KERKAR, Philippe AMON
  • Publication number: 20150041345
    Abstract: Disclosed is a packaging for smoking products that comprises an area with a warning relating to the health hazards of smoking thereon. The area comprises at least one marking that is suitable for identification and/or authentication and/or track and/or trace purposes.
    Type: Application
    Filed: August 11, 2014
    Publication date: February 12, 2015
    Inventor: Brahim KERKAR
  • Patent number: 8864037
    Abstract: Coding flake or film including at least two chiral liquid crystal polymer (CLCP) layers with a first CLCP layer that has a first detectable parameter and a second CLCP layer including a second detectable parameter; at least one additional layer including a third detectable parameter, the at least one additional layer comprising a material that is not a chiral liquid crystal polymer; and wherein at least the third detectable parameter is different from each of the first detectable parameter and the second detectable parameter.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: October 21, 2014
    Assignee: Sicpa Holding SA
    Inventors: Andrea Callegari, Frédéric Gremaud, Cécile Pasquier, Tristan Jauzein, Olivier Rozumek, Brahim Kerkar, Thomas Tiller, Stéphanie Rascagneres
  • Patent number: 8821756
    Abstract: The present invention relates to a marking on an item or substrate, which marking is based on a chiral nematic (also called cholesteric) liquid crystal precursor composition. Prior to curing the chiral liquid crystal precursor composition in the chiral liquid crystal state at least one optical property exhibited by the composition is modified by two modifying agents of different types in at least one area of the item or substrate.
    Type: Grant
    Filed: May 24, 2012
    Date of Patent: September 2, 2014
    Assignee: Sicpa Holding SA
    Inventors: Thomas Tiller, Olivier Rozumek, Tristan Jauzein, Andrea Callegari, Frédéric Gremaud, Brahim Kerkar
  • Publication number: 20140178640
    Abstract: Described is a chiral liquid crystal polymer (CLCP) layer or pattern which comprises randomly distributed craters of controlled mean diameter and/or density. The density and/or mean diameter of the craters can be controlled, for example, by adjusting the wetting of a substrate by a CLCP precursor composition, the development time of the precursor composition, and the thickness of the applied precursor composition.
    Type: Application
    Filed: December 19, 2013
    Publication date: June 26, 2014
    Applicant: SICPA HOLDING SA
    Inventors: Tristan JAUZEIN, Brahim KERKAR
  • Publication number: 20130256415
    Abstract: Coding flake or film including at least two chiral liquid crystal polymer (CLCP) layers with a first CLCP layer that has a first detectable parameter and a second CLCP layer including a second detectable parameter; at least one additional layer including a third detectable parameter, the at least one additional layer comprising a material that is not a chiral liquid crystal polymer; and wherein at least the third detectable parameter is different from each of the first detectable parameter and the second detectable parameter.
    Type: Application
    Filed: March 13, 2013
    Publication date: October 3, 2013
    Applicant: SICPA HOLDING SA
    Inventors: Andrea CALLEGARI, Frédéric GREMAUD, Cécile PASQUIER, Tristan JAUZEIN, Olivier ROZUMEK, Brahim KERKAR, Thomas TILLER, Stéphanie RASCAGNERES
  • Patent number: 8426014
    Abstract: A liquid crystal polymer marking is obtainable by a process that comprises applying a chiral liquid crystal precursor composition onto a substrate, heating the composition to a chiral liquid crystal state, applying to at least one area of the precursor composition a modifying composition, if necessary, heating the at least one area to bring same to a modified liquid crystal state, and subsequently curing and/or polymerizing the resultant product. This abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.
    Type: Grant
    Filed: May 19, 2010
    Date of Patent: April 23, 2013
    Assignee: Sicpa Holding SA
    Inventors: Thomas Tiller, Frédéric Gremaud, Andrea Callegari, Olivier Rozumek, Brahim Kerkar
  • Publication number: 20120328852
    Abstract: The present invention relates to a marking on an item or substrate, which marking is based on a chiral nematic (also called cholesteric) liquid crystal precursor composition. Prior to curing the chiral liquid crystal precursor composition in the chiral liquid crystal state at least one optical property exhibited by the composition is modified by two modifying agents of different types in at least one area of the item or substrate.
    Type: Application
    Filed: May 24, 2012
    Publication date: December 27, 2012
    Applicant: SICPA HOLDING SA
    Inventors: Thomas TILLER, Olivier ROZUMEK, Tristan JAUZEIN, Andrea CALLEGARI, Frédéric GREMAUD, Brahim KERKAR
  • Publication number: 20110135853
    Abstract: A liquid crystal polymer marking is obtainable by a process that comprises applying a chiral liquid crystal precursor composition onto a substrate, heating the composition to a chiral liquid crystal state, applying to at least one area of the precursor composition a modifying composition, if necessary, heating the at least one area to bring same to a modified liquid crystal state, and subsequently curing and/or polymerizing the resultant product. This abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.
    Type: Application
    Filed: May 19, 2010
    Publication date: June 9, 2011
    Applicant: SICPA HOLDING S.A.
    Inventors: Thomas TILLER, Frédéric GREMAUD, Andrea CALLEGARI, Olivier ROZUMEK, Brahim KERKAR