Patents by Inventor Johyun KYOUNG

Johyun KYOUNG 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).

  • Publication number: 20210339831
    Abstract: The present disclosure provides a system and method for monitoring a floating vessel hull mooring system by determining one or more hull rotational motions of yaw, roll, and/or pitch that do not require independent knowledge of environmental conditions. The hull rotational motion of a secure and intact mooring system can be calculated and/or established experientially over time by measuring movement of the hull to characterize the hull rotational motion at given geographical positions. A compromised mooring system will result in different hull rotational motion of at least one of yaw, roll, and/or pitch. By monitoring the hull rotational motion for a given geographical position to be compared to the theoretical values (and/or previous recorded values), it is then possible to assess that at least a portion of the mooring system has been compromised and in at some embodiment indicate which portion of the mooring system has been compromised.
    Type: Application
    Filed: October 21, 2019
    Publication date: November 4, 2021
    Applicant: TECHNIP FRANCE
    Inventors: Nicolas TCHERNIGUIN, Djoni Eka SIDARTA, Johyun KYOUNG, Ho Joon LIM
  • Patent number: 10112687
    Abstract: The present disclosure provides a system and a method for efficiently converting the structure of a drilling floating platform into a structure for a production floating platform. A riser support module can be coupled to a topsides of the drilling floating platform and suspended below a moonpool or other opening through the topsides to support risers and their respective riser pull tubes, if any. The riser support module can be prebuilt and installed as a unit for example at a quayside.
    Type: Grant
    Filed: June 22, 2016
    Date of Patent: October 30, 2018
    Assignee: TECHNIP FRANCE
    Inventors: Kostas F. Lambrakos, Chenteh Alan Yu, Johyun Kyoung, Djoni Eka Sidarta
  • Patent number: 9862468
    Abstract: The present disclosure provides in at least one embodiment a rotatable keel skirt assembly on a rectangular-shaped keel pontoon. The rectangular-shaped keel pontoon reduces the maximum hull width by a significant percentage compared to a circular-shaped keel pontoon while maintaining the same hull motion performance. The rotatable keel skirt assembly allows the size of the pontoon to define the width of the hull during some fabrication phases of the platform, rather than the additional width of the keel skirt assembly. Thus, the outreach of the crane and other equipment can be effectively used as if the keel skirt assembly was not present. After fabrication, the hull can be moved away from the quayside and the keel skirt assembly can be rotated into position for service. Various systems and methods are disclosed for articulating the keel skirt assembly about the hull.
    Type: Grant
    Filed: October 10, 2014
    Date of Patent: January 9, 2018
    Assignee: TECHNIP FRANCE
    Inventors: James Francis O'Sullivan, Johyun Kyoung
  • Publication number: 20170369133
    Abstract: The present disclosure provides a system and a method for efficiently converting the structure of a drilling floating platform into a structure for a production floating platform. A riser support module can be coupled to a topsides of the drilling floating platform and suspended below a moonpool or other opening through the topsides to support risers and their respective riser pull tubes, if any. The riser support module can be prebuilt and installed as a unit for example at a quayside.
    Type: Application
    Filed: June 22, 2016
    Publication date: December 28, 2017
    Applicant: TECHNIP FRANCE
    Inventors: Kostas F. LAMBRAKOS, Chenteh Alan YU, Johyun KYOUNG, Djoni Eka SIDARTA
  • Publication number: 20160101836
    Abstract: The present disclosure provides in at least one embodiment a rotatable keel skirt assembly on a rectangular-shaped keel pontoon. The rectangular-shaped keel pontoon reduces the maximum hull width by a significant percentage compared to a circular-shaped keel pontoon while maintaining the same hull motion performance. The rotatable keel skirt assembly allows the size of the pontoon to define the width of the hull during some fabrication phases of the platform, rather than the additional width of the keel skirt assembly. Thus, the outreach of the crane and other equipment can be effectively used as if the keel skirt assembly was not present. After fabrication, the hull can be moved away from the quayside and the keel skirt assembly can be rotated into position for service. Various systems and methods are disclosed for articulating the keel skirt assembly about the hull.
    Type: Application
    Filed: October 10, 2014
    Publication date: April 14, 2016
    Inventors: James Francis O'Sullivan, Johyun Kyoung
  • Patent number: 9302747
    Abstract: A floating offshore platform is disclosed with one or more extension plates fixedly coupled to one or more pontoons on the offshore platform and extending from the pontoons. As the floating platform moves, the pontoon-coupled extension plates separate the water and cause drag on the platform. The water moving with the extension plates also increases the dynamic mass. The added drag and dynamic mass increases the natural period of the motion away from the wave excitation period to minimize the wave driven motion compared to a platform without the extension plates. The extension plates can be coupled to the pontoons during fabrication at the yard directly or through frame members. The extension plates generally are generally located inclusively between the top and bottom elevations of the pontoons, and therefore do not significantly reduce the clearance between the seabed and the hull at the quayside.
    Type: Grant
    Filed: June 20, 2013
    Date of Patent: April 5, 2016
    Assignee: TECHNIP FRANCE
    Inventors: Kostas F. Lambrakos, Jang Whan Kim, Johyun Kyoung
  • Publication number: 20140305359
    Abstract: A floating offshore platform is disclosed with one or more extension plates fixedly coupled to one or more pontoons on the offshore platform and extending from the pontoons. As the floating platform moves, the pontoon-coupled extension plates separate the water and cause drag on the platform. The water moving with the extension plates also increases the dynamic mass. The added drag and dynamic mass increases the natural period of the motion away from the wave excitation period to minimize the wave driven motion compared to a platform without the extension plates. The extension plates can be coupled to the pontoons during fabrication at the yard directly or through frame members. The extension plates generally are generally located inclusively between the top and bottom elevations of the pontoons, and therefore do not significantly reduce the clearance between the seabed and the hull at the quayside.
    Type: Application
    Filed: June 20, 2013
    Publication date: October 16, 2014
    Inventors: Kostas F. LAMBRAKOS, Jang Whan KIM, Johyun KYOUNG