Patents by Inventor Laurens Cornelis Claassen

Laurens Cornelis Claassen 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).

  • Offshore system
    Patent number: 8142107
    Abstract: This invention relates to an offshore system, comprising a drilling vessel, e.g. a semi-submersible drilling vessel comprising a deck on which a drilling tower for performing drilling operations is mounted. The vessel is furthermore provided with a support for a tiltable J-lay tower for laying a pipeline, said support being arranged next to the drilling tower, and the offshore system further includes a J-lay tower which is or can be mounted on said support.
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: March 27, 2012
    Assignee: Itrec B.V.
    Inventors: Joop Roodenburg, Jurjen Rinnert Haitsma, Laurens Cornelis Claassen
  • Offshore System
    Publication number: 20090220306
    Abstract: This invention relates to an offshore system, comprising a drilling vessel, e.g. a semi-submersible drilling vessel comprising a deck on which a drilling tower for performing drilling operations is mounted. The vessel is furthermore provided with a support for a tiltable J-lay tower for laying a pipeline, said support being arranged next to the drilling tower, and the offshore system further includes a J-lay tower which is or can be mounted on said support.
    Type: Application
    Filed: December 21, 2005
    Publication date: September 3, 2009
    Applicant: Itrec B.V.
    Inventors: Joop Roodenburg, Jurjen Rinnert Haitsma, Laurens Cornelis Claassen