Patents by Inventor Dirk LEY

Dirk LEY 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).

  • Surgical apparatus
    Patent number: 9211149
    Abstract: The present invention relates to a surgical apparatus for the implantation of a spinal column stabilization system generally, and more specifically to a surgical apparatus for the implantation of a spinal column stabilization system, which spinal column stabilization system comprises at least two bone screws which are respectively anchorable in a vertebra of a spinal column and which respectively comprise at least one first connecting element seating, and at least one connecting element which corresponds to the first connecting element seating and is insertable and fixable therein, wherein the apparatus comprises at least one multi-function sleeve having a proximal and a distal end, which multi-function sleeve defines a longitudinal axis and comprises a connecting element coupling device, a spreading-device coupling device and a holding instrument coupling device.
    Type: Grant
    Filed: July 31, 2013
    Date of Patent: December 15, 2015
    Assignee: Aesculap AG
    Inventors: Fabian Hoefer, Dirk Ley, Volker Maute
  • SURGICAL APPARATUS
    Publication number: 20140039567
    Abstract: The present invention relates to a surgical apparatus for the implantation of a spinal column stabilization system generally, and more specifically to a surgical apparatus for the implantation of a spinal column stabilization system, which spinal column stabilization system comprises at least two bone screws which are respectively anchorable in a vertebra of a spinal column and which respectively comprise at least one first connecting element seating, and at least one connecting element which corresponds to the first connecting element seating and is insertable and fixable therein, wherein the apparatus comprises at least one multi-function sleeve having a proximal and a distal end, which multi-function sleeve defines a longitudinal axis and comprises a connecting element coupling device, a spreading-device coupling device and a holding instrument coupling device.
    Type: Application
    Filed: July 31, 2013
    Publication date: February 6, 2014
    Inventors: Fabian HOEFER, Dirk LEY, Volker MAUTE
  • Method of producing polyetherpolyols
    Patent number: 6664428
    Abstract: A process for the preparation of polyetherpolyols by reacting diols or polyols with ethylene oxide, propylene oxide, butylene oxide or a mixture thereof in the presence of a multimetal cyanide complex catalyst is proposed, the reaction being carried out in a stirred kettle reactor and the reaction mixture being circulated via an external heat exchanger by means of a pump.
    Type: Grant
    Filed: August 20, 2002
    Date of Patent: December 16, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Thomas Ostrowski, Kathrin Harre, Georg Heinrich Grosch, Gerd Höppner, Peter de Vocht, Dirk Leys, Jürgen Winkler, Stephan Bauer
  • Method for producing polyetherpolyols
    Publication number: 20030013921
    Abstract: A process for the preparation of polyetherpolyols by reacting diols or polyols with ethylene oxide, propylene oxide, butylene oxide or a mixture thereof in the presence of a multimetal cyanide complex catalyst is proposed, the reaction being carried out in a stirred kettle reactor and the reaction mixture being circulated via an external heat exchanger by means of a pump.
    Type: Application
    Filed: August 20, 2002
    Publication date: January 16, 2003
    Inventors: Thomas Ostrowski, Kathrin Harre, Georg Heinrich Grosch, Gerd Hoppner, Peter de Vocht, Dirk Leys, Jurgen Winkler, Stephan Bauer