Patents by Inventor Matthias Kocher

Matthias Kocher 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).

  • Optically brightened plastics for optically brightening paper-coating compounds and paper-coating compounds optically brightened in this manner
    Patent number: 6387296
    Abstract: Paper coating slips having high whiteness, high greying limit and high lightfastness can be prepared with the aid of whitened finely divided plastics.
    Type: Grant
    Filed: June 27, 1997
    Date of Patent: May 14, 2002
    Assignee: Bayer Aktiengesellschaft
    Inventors: Udo Eckstein, Joachim König, Fritz Puchner, Ulrich Feldhues, Matthias Köcher, Uwe Vogt, Eckhard Wenderoth
  • Modified polyester resins, a process for their preparation and toners containing such polyester resins
    Patent number: 5368968
    Abstract: Modified polyester resins contain polyester blocks which have been obtained from dicarboxylic acids and dialcohols, groupings of the formulae ##STR1## where X=Z=a hydrocarbon radical having 1 to 20 C atoms and Y=a hydrocarbon radical having 2 to 25 C atoms, and if appropriate groupings originating from crosslinking agents. They can be used as base polymers for toners.
    Type: Grant
    Filed: November 27, 1991
    Date of Patent: November 29, 1994
    Assignee: Bayer Aktiengesellschaft
    Inventors: Rolf Wehrmann, Matthias Kocher, Harald Pielartzik, Gunter Klug
  • New naphthalimides, toners containing these and the use of the new naphthalimides as additives for toners
    Patent number: 5292881
    Abstract: New naphthalimides, useful as additives in toners for controlling the charge and conductivity, of the formula ##STR1## in which R represents C.sub.1 - to C.sub.22 -alkyl,R.sup.1 and R.sup.2 independently of one another in each case represent C.sub.1 - to C.sub.4 -alkyl, or R.sup.1 and R.sup.2, together with the nitrogen atom in between, form a pyrrolidine, piperidine or morpholine ring,n represents 2 or 3 andX.sup..crclbar. represent one equivalentof a benzoate or naphthoate, which is optionally substituted by chlorine, bromine, methyl, methoxy, hydroxyl, cyano and/or hydroxycarbonyl,of a benzenesulphonate which is substituted by hydroxyl, amino or nitro,of a naphthalenesulphonate which is optionally substituted by hydroxyl, amino or a sulphonic acid group, orof a fluorine-substituted anion of a C.sub.4 - to C.sub.18 -alkanecarboxylic or -alkanesulphonic acid.
    Type: Grant
    Filed: February 19, 1992
    Date of Patent: March 8, 1994
    Assignee: Bayer Aktiengesellschaft
    Inventors: Horst Berneth, Horst Harnisch, Roderich Raue, Jurgen-Rolf Hassdenteufel, Matthias Kocher
  • Porphycene anti-cancer agents and treatment methods
    Patent number: 5015478
    Abstract: The therapeutic compositions of this invention comprise one or more porphycene compounds incorporated within liposomes. The method of this invention for treating cancer comprises administering a therapeutically effective amount of a porphycene derivative to a patient, and exposing an affected body area of the patient to a therapeutically sufficient amount of light having a wavelength of from 600 to 950 nm.
    Type: Grant
    Filed: November 22, 1989
    Date of Patent: May 14, 1991
    Assignee: Cytopharm, Inc.
    Inventors: Giulio Jori, Matthias Kocher, Emanuel Vogel, Alexander D. Cross
  • Porphycene anti-cancer agents and treatment methods
    Patent number: 4913907
    Abstract: The therapeutic compositions of this invention comprise one or more porphycene compounds incorporated within liposomes. The method of this invention for treating cancer comprises administering a therapeutically effective amount of a porphycene derivative to a patient, and exposing an affected body area of the patient to a therapeutically sufficient amount of light having a wavelength of from 600 to 950 nm.
    Type: Grant
    Filed: August 15, 1988
    Date of Patent: April 3, 1990
    Assignee: Cytopharm, Inc.
    Inventors: Giulio Jori, Matthias Kocher, Emanuel Vogel, Alexander D. Cross