Patents by Inventor David Chien

David Chien 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).

  • Patent number: 10986961
    Abstract: A collapsible support stand is disclosed. The support stand includes a first support section and a second support section. The first support section includes a first side frame and a plurality of first bars extending perpendicularly from the first side frame. The second support section includes a second side frame parallel to the first side frame, a first centre frame defining a plurality of holes, and a plurality of second bars extending between the second side frame and the first centre frame, wherein axial movement of the plurality of first bars through the plurality of holes moves the first support section between an extended position and a retracted position relative to the second support section. The support stand includes a pair of first foldable legs connected to the first side frame and a pair of second foldable legs connected to the second side frame.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: April 27, 2021
    Assignee: Yehs Innovations Inc.
    Inventor: David Chien-Tuo Yeh
  • Patent number: 10922782
    Abstract: Systems and methods for mapping vertices from one coordinate system in an earth model to another coordinate system in a two-dimensional (2D) array without disrupting the topology of the vertices.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: February 16, 2021
    Assignee: LANDMARK GRAPHICS CORPORATION
    Inventors: Zitao Xu, Genbao Shi, ChiKang David Chien, Maurice Gehin, Andres Cesar Callegari, Jeffrey Marc Yarus
  • Publication number: 20200196797
    Abstract: A collapsible support stand is disclosed. The support stand includes a first support section and a second support section. The first support section includes a first side frame and a plurality of first bars extending perpendicularly from the first side frame. The second support section includes a second side frame parallel to the first side frame, a first centre frame defining a plurality of holes, and a plurality of second bars extending between the second side frame and the first centre frame, wherein axial movement of the plurality of first bars through the plurality of holes moves the first support section between an extended position and a retracted position relative to the second support section. The support stand includes a pair of first foldable legs connected to the first side frame and a pair of second foldable legs connected to the second side frame.
    Type: Application
    Filed: December 21, 2018
    Publication date: June 25, 2020
    Applicant: Yehs Innovations Inc.
    Inventor: David Chien-Tuo YEH
  • Publication number: 20200043131
    Abstract: Systems and methods for mapping vertices from one coordinate system in an earth model to another coordinate system in a two-dimensional (2D) array without disrupting the topology of the vertices.
    Type: Application
    Filed: December 16, 2016
    Publication date: February 6, 2020
    Applicant: Landmark Graphics Corporation
    Inventors: Zitao XU, Genbao SHI, ChiKang David CHIEN, Maurice GEHIN, Andres Cesar CALLEGARI, Jeffrey Marc YARUS
  • Patent number: 10345482
    Abstract: In various examples, a method includes storing one or more data structures on a storage device, the one or more data structures identifying a plurality of faults in a geographical formation and a plurality of fault blocks on either side of the plurality of faults in the geographic formation; for each pair of faults blocks on opposite sides of a fault identified in the one or more data structures: determining, using at least one processor, a fault polygon of a respective pair of fault blocks with respect to a fault of the plurality of faults; and calculating a matching factor between the respective pair of fault blocks based on the fault polygon; selecting a pair of fault blocks to merge based on the calculated matching factor; and updating the one or more data structures to indicate the selected pair of fault blocks has been merged.
    Type: Grant
    Filed: November 26, 2013
    Date of Patent: July 9, 2019
    Assignee: LANDMARK GRAPHICS CORPORATION
    Inventors: Zitao Xu, Genbao Shi, Chikang David Chien, Jeffrey Yarus, Richard L. Chambers
  • Patent number: 10319140
    Abstract: A consecutive set of data points, P1, P2, P3, and P4, is selected. A first line is created through P1 and P3. A first tangent vector originating at P2, parallel to the first line, is created. A second line through P2 and P4 is created. A second tangent vector through P3 is created. The second tangent vector is parallel to the second line. A baseline through P2 and P3 is created. A Bezier curve between P2 and P3 is created, wherein the Bezier curve has a degree. The degree of the Bezier curve is determined based on a comparison of the first tangent vector, the second tangent vector, and the baseline.
    Type: Grant
    Filed: July 7, 2015
    Date of Patent: June 11, 2019
    Assignee: Landmark Graphics Corporation
    Inventors: Zitao Xu, Genbao Shi, Andres Cesar Callegari, ChiKang David Chien, Jeffrey Marc Yarus
  • Publication number: 20170148209
    Abstract: A consecutive set of data points, P1, P2, P3, and P4, is selected. A first line is created through P1 and P3. A first tangent vector originating at P2, parallel to the first line, is created. A second line through P2 and P4 is created. A second tangent vector through P3 is created. The second tangent vector is parallel to the second line. A baseline through P2 and P3 is created. A Bezier curve between P2 and P3 is created, wherein the Bezier curve has a degree. The degree of the Bezier curve is determined based on a comparison of the first tangent vector, the second tangent vector, and the baseline.
    Type: Application
    Filed: July 7, 2015
    Publication date: May 25, 2017
    Inventors: Zitao Xu, Genbao Shi, Andres Cesar Callegari, ChiKang David Chien, Jeffrey Marc Yarus
  • Patent number: 9645280
    Abstract: A method to generate a global grid may include storing at least one data structure representing a plurality of fault blocks associated with one or more faults in a geographic formation; selecting two fault blocks associated with a fault of the one or more faults; changing the position of a first of the two fault blocks in the at least one data structure representative of a shift of the first fault block towards the other fault block of the two fault blocks to position the center of gravity of a fault boundary of the first fault block with the center of gravity of a fault boundary of the other fault block; aligning the first fault block with the other fault block according to a permitted level of conflict between fault blocks; and updating the at least one data structure to indicate a merging of the two selected fault blocks.
    Type: Grant
    Filed: September 3, 2013
    Date of Patent: May 9, 2017
    Assignee: LANDMARK GRAPHICS CORPORATION
    Inventors: Zitao Xu, Genbao Shi, Chikang David Chien, Jeffrey Yarus, Richard L. Chambers
  • Publication number: 20160216403
    Abstract: In various examples, a method includes storing one or more data structures on a storage device, the one or more data structures identifying a plurality of faults in a geographical formation and a plurality of fault blocks on either side of the plurality of faults in the geographic formation; for each pair of faults blocks on opposite sides of a fault identified in the one or more data structures: determining, using at least one processor, a fault polygon of a respective pair of fault blocks with respect to a fault of the plurality of faults; and calculating a matching factor between the respective pair of fault blocks based on the fault polygon; selecting a pair of fault blocks to merge based on the calculated matching factor; and updating the one or more data structures to indicate the selected pair of fault blocks has been merged.
    Type: Application
    Filed: November 26, 2013
    Publication date: July 28, 2016
    Applicant: Landmark Graphics Corporation
    Inventors: Zitao Xu, Genbao Shi, Chikang David Chien, Jeffrey Yarus, Richard L. Chambers
  • Publication number: 20160116636
    Abstract: A method to generate a global grid may include storing at least one data structure representing a plurality of fault blocks associated with one or more faults in a geographic formation; selecting two fault blocks associated with a fault of the one or more faults; changing the position of a first of the two fault blocks in the at least one data structure representative of a shift of the first fault block towards the other fault block of the two fault blocks to position the center of gravity of a fault boundary of the first fault block with the center of gravity of a fault boundary of the other fault block; aligning the first fault block with the other fault block according to a permitted level of conflict between fault blocks; and updating the at least one data structure to indicate a merging of the two selected fault blocks.
    Type: Application
    Filed: September 3, 2013
    Publication date: April 28, 2016
    Inventors: Zitao Xu, Genbao Shi, Chikang David Chien, Jeffery Varus, Richard L. Chambers
  • Patent number: 8736600
    Abstract: Systems and methods for imaging a 3D volume of geometrically irregular grid data. The systems and methods utilize various types of probes and displays to render the geometrically irregular grid data, in real-time, and analyze the geometrically irregular grid data.
    Type: Grant
    Filed: June 5, 2009
    Date of Patent: May 27, 2014
    Assignee: Landmark Graphics Corporation
    Inventors: Jim Ching-Rong Lin, Chi-Kang David Chien, Jeffrey M. Yarus
  • Patent number: 8475808
    Abstract: Recombinant production of immunogenic West Nile Virus (WNV) proteins is described. These proteins, heterodimers comprising the proteins, fusions thereof, polynucleotides encoding the proteins, and combinations thereof, as well as antibodies produced therefrom, can be used in immunogenic compositions for preventing, treating and diagnosing WNV infection. Also described are highly sensitive ELISA and strip immunoassay methods for detecting the presence of WNV in biological samples.
    Type: Grant
    Filed: May 21, 2004
    Date of Patent: July 2, 2013
    Assignee: Novartis Vaccines and Diagnostics, Inc.
    Inventors: William Andrews, David Chien, Qui-Lim Choo, Stephen Coates, Doris Coit, Charles Harrington, Susan Hilt, Michael Houghton, Angelica Medina-Selby, Sergio Pichuantes, Yiu-Lian Fong
  • Patent number: 7871625
    Abstract: Modified HCV multiple epitope fusion antigens (MEFAs) are described. The proteins include modified sequences such that proteolytic cleavage of the MEFAs by HCV NS3 protease is inhibited. HCV immunoassays including the modified MEFAs are also described.
    Type: Grant
    Filed: August 26, 2005
    Date of Patent: January 18, 2011
    Assignee: Novartis Vaccines and Diagnostics, Inc.
    Inventors: David Chien, Doris Coit, Carlos George-Nascimento, Sansan Lin, Angelica Medina-Selby, Laura Tandeske
  • Publication number: 20090303233
    Abstract: Systems and methods for imaging a 3D volume of geometrically irregular grid data. The systems and methods utilize various types of probes and displays to render the geometrically irregular grid data, in real-time, and analyze the geometrically irregular grid data.
    Type: Application
    Filed: June 5, 2009
    Publication date: December 10, 2009
    Applicant: Landmark Graphics Corporation, a Halliburton Company
    Inventors: Jim Ching-Rong Lin, Chi-Kang David Chien, Jeffrey M. Yarus
  • Publication number: 20090130774
    Abstract: Peptide reagents that interact preferentially with the PrPsc form of the prion protein are described for use in detecting PrPsc in biological samples. In particular, ELISA assays are described.
    Type: Application
    Filed: January 13, 2006
    Publication date: May 21, 2009
    Inventors: David Peretz, Melissa Michelitsch, Celine Hu, Xuemei Wang, Man Gao, Michael Connolly, Thomas Horn, Ronald Zuckermann, David Chien
  • Publication number: 20090099343
    Abstract: Peptide reagents that interact preferentially with the PrPsc form of the prion protein are described. Methods of using the reagents for isolation and purification of the PrPsc isoform are described.
    Type: Application
    Filed: January 13, 2006
    Publication date: April 16, 2009
    Inventors: David Peretz, Melissa Michelitsch, Celine Hu, David Chien, John Hall, Xuemei Wang, Man Gao
  • Patent number: 7491808
    Abstract: Modified HCV non-structural proteins are described. The proteins include modified NS3 domains such that proteolytic activity of the NS3 molecule is inhibited. The modified proteins retain conformational epitopes. HCV immunoassays including the modified NS3 molecules are also described.
    Type: Grant
    Filed: August 26, 2005
    Date of Patent: February 17, 2009
    Assignee: Novartis Vaccines and Diagnostics, Inc.
    Inventors: David Chien, Doris Coit, Celine Hu, Sansan Lin, Angelica Medina-Selby
  • Patent number: 7429385
    Abstract: Methods for obtaining recombinantly produced, C-terminally truncated, E1 and E2 polypeptides from cell lysates are disclosed. The intracellularly expressed truncated molecules display improved biological properties as compared to their secreted counterparts.
    Type: Grant
    Filed: February 18, 2003
    Date of Patent: September 30, 2008
    Assignee: Novartis Vaccines & Diagnostics
    Inventors: Michael Houghton, Qui-Lim Choo, Sergio Abrignani, David Chien, Mark Selby, Edward Glazer
  • Patent number: 7378492
    Abstract: Various embodiments of the invention provide human receptors and membrane-associated proteins (REMAP) and Q polynucleotides which identify and encode REMAP. Embodiments of the invention also provide expression vectors, host cells, antibodies, agonists, and antagonists. Other embodiments provide methods for diagnosing, treating, or preventing disorders associated with aberrant expression of REMAP.
    Type: Grant
    Filed: February 18, 2003
    Date of Patent: May 27, 2008
    Assignee: Incyte Corporation
    Inventors: Narinder K. Chawla, Henry Yue, Thomas W. Richardson, Joseph P. Marquis, Patricia M. Lehr-Mason, Ann E. Gorvad, Shanya D. Becha, Amy E. Kable, Anita Swarnakar, Pei Jin, Phillip R. Hawkins, David Chien, Jayalaxmi Ramkumar, Uyen K. Tran, April J. A. Hafalia, Mariah R. Baughn, Soo Yeun Lee, Xin Jiang, Alan A. Jackson, Reena Khare, Sean A. Bulloch
  • Publication number: 20070276126
    Abstract: Various embodiments of the invention provide human cell adhesion and extracellular matrix proteins (CADECM) and polynucleotides which identify and encode CADECM. Embodiments of the invention also provide expression vectors, host cells, antibodies, agonists, and antagonists. Other embodiments provide methods for diagnosing, treating, or preventing disorders associated with aberrant expression of CADECM.
    Type: Application
    Filed: August 12, 2003
    Publication date: November 29, 2007
    Inventors: Vicki Elliott, Reena Khare, Brooke Emerling, Amy Kable, Uyen Tran, Pei Jin, Shanya Becha, Joseph Marquis, Anita Swarnakar, Narinder Chawla, Jayalaxmi Ramkumar, April Hafalia, Soo Lee, Xin Jiang, Alan Jackson, Thomas Richardson, Julie Blake, Jonathan Wang, David Chien, Yonghong Yang