Patents by Inventor Joachim Jandke

Joachim Jandke 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).

  • Method of protecting organic material from light
    Patent number: 7387646
    Abstract: The present invention relates to a method of protecting organic material, especially from the pharmaceutical, food and nutrition sectors, from light, which method comprises applying to or incorporating in a carrier material a combination of the dye of formula (1) the dye of formula (2) and a UV absorber and, optionally, further dyes, and positioning the so-treated carrier material between the light source and the organic material to be protected
    Type: Grant
    Filed: December 13, 2004
    Date of Patent: June 17, 2008
    Assignee: Ciba Specialty Chemicals Corporation
    Inventor: Joachim Jandke
  • Method of protecting organic material from light
    Publication number: 20070157401
    Abstract: The present invention relates to a method of protecting organic material, especially from the pharmaceutical, food and nutrition sectors, from light, which method comprises applying to or incorporating in a carrier material a combination of the dye of formula (1) the dye of formula (2) and a UV absorber and, optionally, further dyes, and positioning the so-treated carrier material between the light source and the organic material to be protected.
    Type: Application
    Filed: December 13, 2004
    Publication date: July 12, 2007
    Inventor: Joachim Jandke
  • Oxobenzofuranylide-dihydroindolone
    Publication number: 20030121113
    Abstract: Oxobenzofuranylidene-dihydroindolones of formulae trans-(Ia) and cis-(Ib) 1
    Type: Application
    Filed: December 18, 2002
    Publication date: July 3, 2003
    Inventors: Peter Nesvadba, Joachim Jandke
  • Dibenzonaphthyrones
    Patent number: 6533825
    Abstract: Dibenzonaphthyrone of formula (I) wherein A1 and A2 independently of each other are unsubstituted or mono- to tetra-substituted o-C6-C18arylene, with the proviso that formula (I) does not represent a dibenzonaphthyrone of the formula The invention further relates to processes for the preparation thereof, to the use thereof for colouring/pigmenting high-molecular-weight organic material and to substance compositions comprising dibenzonaphthyrones.
    Type: Grant
    Filed: June 13, 2001
    Date of Patent: March 18, 2003
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Peter Nesvadba, Joachim Jandke
  • Oxobenzofuranylide-dihydroindolone
    Patent number: 6503937
    Abstract: Oxobenzofuranylidene-dihydroindolones of formulae trans-(Ia) and cis-(Ib) and of formulae trans-(IIa) and cis-(IIb) wherein A1 and A2 are each independently of the other unsubstituted or mono- to tetra-substituted ortho-C6-C18arylene, and R1 is hydrogen or an organic radical, with the proviso that when R1 is hydrogen and A2 is 1,2-phenylene, A1 is not 9,10-anthraquinon-1,2-ylene, 4-chloro-3,5-dimethyl-1,2-phenylene or 3,5-dimethyl-1,2-phenylene, processes for their preparation and the use thereof.
    Type: Grant
    Filed: April 3, 2001
    Date of Patent: January 7, 2003
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Peter Nesvadba, Joachim Jandke
  • Dibenzonaphthyrones
    Publication number: 20020095046
    Abstract: Dibenzonaphthyrone of formula (I) 1
    Type: Application
    Filed: June 13, 2001
    Publication date: July 18, 2002
    Inventors: Peter Nesvadba, Joachim Jandke
  • Isoxindigos useful as colorants and preparation thereof
    Patent number: 6323267
    Abstract: The present invention relates to a process for coloration of a high molecular weight material by admixing said high molecular weight organic or inorganic material, preferably high molecular weight organic material, prior to processing with at least one compound of the formula: where A1 and A2 are independently unsubstituted, monosubstituted, disubstituted, trisubstituted or tetrasubstituted o-C6-C18arylene. The invention further relates to compositions of matter comprising isoxindigo compounds and high molecular weight organic material. The invention also relates to processes for preparing the compound of the formula (I) and also to novel isoxindigo compounds which can be symmetrical or asymmetrical or else have a bisisoxindigo structure.
    Type: Grant
    Filed: September 3, 1998
    Date of Patent: November 27, 2001
    Assignee: CIBA Specialty Chemicals Corp.
    Inventors: Peter Nesvadba, Joachim Jandke
  • Dibenzonaphthyrones
    Patent number: 6281361
    Abstract: Dibenzonaphthyrone of formula (I) wherein A1 and A2 independently of each other are unsubstituted or mono- to tetra-substituted o-C6-C18arylene, with the proviso that formula (I) does not represent a dibenzonaphthyrone of the formula The invention further relates to processes for the preparation thereof, to the use thereof for colouring/pigmenting high-molecular-weight organic material and to substance compositions comprising dibenzonaphthyrones.
    Type: Grant
    Filed: March 29, 1999
    Date of Patent: August 28, 2001
    Assignee: Ciba Specialty Chemicals Corp.
    Inventors: Peter Nesvadba, Joachim Jandke