Patents by Inventor Cedric Klein

Cedric Klein 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: 20260008878
    Abstract: The present invention relates to a novel method for the preparation of photoaligning polymer materials comprising aryl acrylic acid ester groups, to photoalignment compositions obtained by this process, to the use of the composition as orienting layer for liquid crystals and to non-structured and structured optical elements, electro-optical elements, multi-layer systems or in nanoelectronics comprising the compositions.
    Type: Application
    Filed: September 19, 2025
    Publication date: January 8, 2026
    Applicant: ROLIC TECHNOLOGIES AG
    Inventors: Cedric KLEIN, Fabien Xavier Delbaere, Richard Frantz
  • Patent number: 12448473
    Abstract: The present invention relates to a novel method for the preparation of photoaligning polymer materials comprising aryl acrylic acid ester groups, to photoalignment compositions obtained by this process, to the use of the composition as orienting layer for liquid crystals and to non-structured and structured optical elements, electro-optical elements, multi-layer systems or in nanoelectronics comprising the compositions.
    Type: Grant
    Filed: August 8, 2018
    Date of Patent: October 21, 2025
    Assignee: ROLIC TECHNOLOGIES AG
    Inventors: Cedric Klein, Fabien Xavier Delbaere, Richard Frantz
  • Patent number: 11874563
    Abstract: The present invention relates to novel photoaligning polymer materials, to their use as orienting layer for liquid crystals, which are used for the production of non-structured and structured optical elements, electro-optical elements, multi-layer systems or in nanoelectronics.
    Type: Grant
    Filed: August 8, 2018
    Date of Patent: January 16, 2024
    Assignee: ROLIC TECHNOLOGIES AG
    Inventors: Cedric Klein, Fabien Xavier Delbaere, Richard Frantz
  • Publication number: 20200174322
    Abstract: The present invention relates to novel photoaligning polymer materials, to their use as orienting layer for liquid crystals, which are used for the production of non-structured and structured optical elements, electro-optical elements, multi-layer systems or in nanoelectronics.
    Type: Application
    Filed: August 8, 2018
    Publication date: June 4, 2020
    Applicant: ROLIC TECHNOLOGIES AG
    Inventors: Cedric KLEIN, Fabien Xavier DELBAERE, Richard FRANTZ
  • Publication number: 20200148802
    Abstract: The present invention relates to a novel method for the preparation of photoaligning polymer materials comprising aryl acrylic acid ester groups, to photoalignment compositions obtained by this process, to the use of the composition as orienting layer for liquid crystals and to non-structured and structured optical elements, electro-optical elements, multi-layer systems or in nanoelectronics comprising the compositions.
    Type: Application
    Filed: August 8, 2018
    Publication date: May 14, 2020
    Applicant: ROLIC TECHNOLOGIES AG
    Inventors: Cedric KLEIN, Fabien Xavier DELBAERE, Richard FRANTZ
  • Publication number: 20190358984
    Abstract: The instant invention relates to liquid compositions comprising derivatives of diaminostilbene, binders and ink fixing agents such as divalent metal salts for the optical brightening of substrates suitable for high quality ink jet printing.
    Type: Application
    Filed: August 9, 2019
    Publication date: November 28, 2019
    Applicant: ARCHROMA IP GMBH
    Inventors: Andrew Clive Jackson, Cedric Klein, David Puddiphatt, Benny J. Skaggs
  • Patent number: 10385215
    Abstract: New dichroic dyes having a composition with slave materials. The dyes may be used for a dichroic polymer network, a dichroic liquid crystalline polymer film (LCP film) or a dichroic liquid crystalline polymer gel, which for instance find application as electro-optical or optical devices.
    Type: Grant
    Filed: May 18, 2015
    Date of Patent: August 20, 2019
    Assignee: ROLIC AG
    Inventors: Cedric Klein, Frederic Lincker, Frederic Reveaud
  • Patent number: 9951031
    Abstract: Concentrated storage stable aqueous solutions (S) comprising components (a), (b) and (c), wherein component (a) is at least one optical brightening agent of formula (1), in which the anionic charge on the brightener is balanced by a cationic charge composed of one or more cations selected from the group consisting of hydrogen, alkali metal cation, alkaline earth metal cation, ammonium, ammonium which is mono-, di- or trisubstituted by a C1-4 linear or branched alkyl radical and ammonium which is mono-, di- or trisubstituted by a C1-4 linear or branched hydroxyalkyl radical, and the concentration of component (a) is 0.08 to 0.
    Type: Grant
    Filed: December 1, 2010
    Date of Patent: April 24, 2018
    Assignee: ARCHROMA IP GMBH
    Inventors: Cedric Klein, Frederic Reveaud, David Puddiphatt, Andrew Clive Jackson
  • Patent number: 9797095
    Abstract: The instant invention relates to liquid sizing compositions comprising shading dyestfuffs, derivatives of diaminostilbene, binders, protective polymers, and optionally divalent metal salts which can be used for the optical brightening of substrates, including substrates suitable for high quality ink jet printing.
    Type: Grant
    Filed: February 5, 2011
    Date of Patent: October 24, 2017
    Assignee: ARCHOMA IP GMBH
    Inventors: Cedric Klein, Heidrun Grether-Schene
  • Publication number: 20170058126
    Abstract: New dichroic dyes having a composition with slave materials. The dyes may be used for a dichroic polymer network, a dichroic liquid crystalline polymer film (LCP film) or a dichroic liquid crystalline polymer gel, which for instance find application as electro-optical or optical devices.
    Type: Application
    Filed: May 18, 2015
    Publication date: March 2, 2017
    Applicant: ROLIC AG
    Inventors: Cedric KLEIN, Frederic LINCKER, Frederic REVEAUD
  • Publication number: 20160312409
    Abstract: The instant invention relates to improved liquid sizing compositions comprising derivatives of diaminostilbene, binders, protective polymers and divalent metal salts for the optical brightening of substrates suitable for high quality ink jet printing.
    Type: Application
    Filed: July 7, 2016
    Publication date: October 27, 2016
    Inventors: Andrew Clive JACKSON, Cedric KLEIN, David PUDDIPHATT
  • Patent number: 9415620
    Abstract: The instant invention relates to improved liquid sizing compositions comprising derivatives of diaminostilbene, binders, protective polymers and divalent metal salts for the optical brightening of substrates suitable for high quality ink jet printing.
    Type: Grant
    Filed: March 2, 2015
    Date of Patent: August 16, 2016
    Assignee: ARCHROMA IP GMBH
    Inventors: Andrew Clive Jackson, Cedric Klein, David Puddiphatt
  • Patent number: 9376405
    Abstract: The instant invention relates to novel water soluble bis-(triazinylamino)-stilbene optical brightening agents, a process for their preparation and their use for whitening natural and synthetic materials.
    Type: Grant
    Filed: April 17, 2012
    Date of Patent: June 28, 2016
    Assignee: CLARIANT INTERNATIONAL LTD
    Inventors: Cedric Klein, Frederic Reveaud, Andrew Clive Jackson, David Atkinson
  • Publication number: 20150345082
    Abstract: The instant invention relates to liquid compositions comprising derivatives of diaminostilbene, binders and ink fixing agents such as divalent metal salts for the optical brightening of substrates suitable for high quality ink jet printing.
    Type: Application
    Filed: August 7, 2015
    Publication date: December 3, 2015
    Applicant: ARCHROMA IP GMBH
    Inventors: Andrew Clive Jackson, Cedric Klein, David Puddiphatt, Benny J. Skaggs
  • Publication number: 20150197116
    Abstract: The instant invention relates to improved liquid sizing compositions comprising derivatives of diaminostilbene, binders, protective polymers and divalent metal salts for the optical brightening of substrates suitable for high quality ink jet printing.
    Type: Application
    Filed: March 2, 2015
    Publication date: July 16, 2015
    Inventors: Andrew Clive JACKSON, Cedric KLEIN, David PUDDIPHATT
  • Patent number: 8980440
    Abstract: This invention pertains to light emitting materials comprising novel ortho-metalated transition metal complexes [C^N]2M(T)(L), comprising chelate dialkylamino-substituted C^N ligands, monodentate neutral ligand (L) having sp2 hybridized N atom and a monodentate anionic ligand (T) chosen among CN?, CNO?, CNS?. It has been surprisingly found that when the metal has bound thereto in addition to substituted orthometalated ligands, both an anion chosen among cyanide, thiocyanate, cyanate, possessing strong C donor and ? acceptor properties, and a monodentate neutral ligand L, as above defined, said ligands advantageously participate in the emission process, significantly shifting emission towards higher energies (blue-shift) and enabling appreciable improvement of the emission efficiency of complexes [C^N]2M(T)(L). Still objects of the invention are the use of said light emitting materials and organic light emitting device comprising said light emitting material.
    Type: Grant
    Filed: April 3, 2007
    Date of Patent: March 17, 2015
    Assignee: Solvay (Societe Anonyme)
    Inventors: Mohammad Khaja Nazeeruddin, Cedric Klein, Michael Graetzel
  • Publication number: 20140171560
    Abstract: The instant invention relates to aqueous coating compositions for optical brightening and shading of substrates.
    Type: Application
    Filed: August 4, 2012
    Publication date: June 19, 2014
    Inventors: Cedric Klein, Frederic Reveaud, David Atkinson, Andrew Clive Jackson
  • Publication number: 20140142305
    Abstract: The instant invention relates to novel water soluble bis-(triazinylamino)-stilbene optical brightening agents, a process for their preparation and their use for whitening natural and synthetic materials.
    Type: Application
    Filed: April 17, 2012
    Publication date: May 22, 2014
    Applicant: CLARIANT INTERNATIONAL LTD
    Inventors: Cedric Klein, Frederic Reveaud, Andrew Clive Jackson, David Atkinson
  • Publication number: 20130244147
    Abstract: The instant invention relates to liquid compositions comprising derivatives of diaminostilbene, binders and ink fixing agents such as divalent metal salts for the optical brightening of substrates suitable for high quality ink jet printing.
    Type: Application
    Filed: April 26, 2013
    Publication date: September 19, 2013
    Applicant: INTERNATIONAL PAPER COMPANY
    Inventors: Andrew Clive Jackson, Cedric Klein, David Puddiphatt, Benny J. Skaggs
  • Patent number: 8518557
    Abstract: This invention pertains to light emitting materials comprising novel ortho-metalated transition metal complexes [C^N]2ML comprising two orthometalated ligands having imidazole moieties and an ancillary ligand of ?-diketonate type. The ortho-metalated transition metal complexes are represented by formula (I): It has been surprisingly found that when the metal has bound thereto both orthometalated ligands comprising imidazole moieties and an ancillary ligand of ?-diketonate type, the ligands advantageously participate in the emission process, significantly broadening emission in the visible region and enabling appreciable improvement of the white emission efficiency of complexes [C^N]2ML. Additional objects of the invention are the use of the light emitting materials and organic light emitting device comprising the light emitting material.
    Type: Grant
    Filed: October 11, 2007
    Date of Patent: August 27, 2013
    Assignee: Solvay (Societe Anonyme)
    Inventors: Mohammad Khaja Nazeeruddin, Cedric Klein, Michael Graetzel