Patents by Inventor Ingo Kiefer

Ingo Kiefer 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).

  • Process for preparing (mercaptoorganyl)alkoxysilanes
    Publication number: 20050124821
    Abstract: The present invention is directed to a process for preparing (mercaptoorganyl)alkoxysilanes by conversion of alkali-metal hydrogensulfide with a mixture of (haloorganyl)alkoxysilane and (haloorganyl)halosilane in an alcohol with air excluded and at an elevated pressure.
    Type: Application
    Filed: November 4, 2004
    Publication date: June 9, 2005
    Inventors: Karsten Korth, Philipp Albert, Ingo Kiefer
  • Process for the preparation of (mercaptoorganyl)alkoxysilanes
    Publication number: 20050124822
    Abstract: The present invention relates to a process for the preparation of (mercaptoorganyl)-alkoxysilanes by reacting an alkali metal sulfide with a mixture of (haloorganyl)alkoxysilane and (haloorganyl)halosilane in an alcohol with the exclusion of air and under elevated pressure.
    Type: Application
    Filed: November 4, 2004
    Publication date: June 9, 2005
    Inventors: Karsten Korth, Philipp Albert, Ingo Kiefer
  • Silane-modified biopolymeric, biooligomeric, oxidic or siliceous filler, process for its production and its use
    Patent number: 6893495
    Abstract: Silane-modified biopolymeric, biooligomeric, oxidic or siliceous filler obtainable by reacting at least one biopolymeric, biooligomeric, oxidic or siliceous filler in a compressed gas with at least one silane. The silane-modified biopolymeric, biooligomeric, oxidic or siliceous fillers are used in rubber compounds.
    Type: Grant
    Filed: May 8, 2002
    Date of Patent: May 17, 2005
    Assignee: Degussa AG
    Inventors: Karsten Korth, Hans-Detlef Luginsland, Andre Hasse, Ingo Kiefer, Juergen Heidlas
  • Organosilicon compounds
    Patent number: 6849754
    Abstract: Organosilicon compounds of the general formula I and/or II are produced by reacting silanes of the general formula III with alcohols of the general formula R?—OH, with elimination of R—OH, wherein R—OH may be continuously separated from the reaction mixture by distillation. The organosilicon compounds may be used in rubber mixtures. Compounds, such as rubbers, produced using such organosilicon compounds.
    Type: Grant
    Filed: August 6, 2002
    Date of Patent: February 1, 2005
    Assignee: Degussa AG
    Inventors: Ulrich Deschler, Roland Krafczyk, Hans-Detlef Luginsland, Karsten Korth, Ingo Kiefer, Michael Horn
  • Organosilicon compounds
    Publication number: 20050004386
    Abstract: Organosilicon compounds of the general formula I and/or II are produced by reacting silanes of the general formula III with alcohols of the general formula R?—OH, with elimination of R—OH, wherein R—OH may be continuously separated from the reaction mixture by distillation. The organosilicon compounds may be used in rubber mixtures. Compounds, such as rubbers, produced using such organosilicon compounds.
    Type: Application
    Filed: July 30, 2004
    Publication date: January 6, 2005
    Applicant: DEGUSSA AG
    Inventors: Ulrich Deschler, Roland Krafczyk, Hans-Detlef Luginsland, Karsten Korth, Ingo Kiefer, Michael Horn
  • Organosilicon compounds
    Publication number: 20030130535
    Abstract: Organosilicon compounds of the general formula I and/or II 1
    Type: Application
    Filed: August 6, 2002
    Publication date: July 10, 2003
    Applicant: Degussa AG,
    Inventors: Ulrich Deschler, Roland Krafczyk, Hans-Detlef Luginsland, Karsten Korth, Ingo Kiefer, Michael Horn
  • Silane-modified biopolymeric, biooligomeric, oxidic or siliceous filler, process for its production and its use
    Publication number: 20030083516
    Abstract: Silane-modified biopolymeric, biooligomeric, oxidic or siliceous filler obtainable by reacting at least one biopolymeric, biooligomeric, oxidic or siliceous filler in a compressed gas with at least one silane. The silane-modified biopolymeric, biooligomeric, oxidic or siliceous fillers are used in rubber compounds.
    Type: Application
    Filed: May 8, 2002
    Publication date: May 1, 2003
    Applicant: DEGUSSA AG
    Inventors: Karsten Korth, Hans-Detlef Luginsland, Andre Hasse, Ingo Kiefer, Juergen Heidlas