Patents by Inventor Fa Liu

Fa Liu 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: 20150344519
    Abstract: The invention relates to the synthesis of peptides, proteins and related bioconjugates, and in particular, to such synthesis using a peptide ligation method whereby a C-terminal salicylaldehyde ester peptide is reacted with an aminoacyl-N-hydroxl peptide. The invention also relates to the synthesis of cyclic peptides, including serinyl- or threonyl-containing cyclic peptides. The invention further relates to a solid phase synthesis of C-terminal salicylaldehyde ester peptides.
    Type: Application
    Filed: February 6, 2013
    Publication date: December 3, 2015
    Inventors: Chuan Fa Liu, Junfeng Zhao
  • Patent number: 9175038
    Abstract: Found in various eukaryotic organisms, polo-like kinases (collectively, Plks) are a conserved subfamily of Ser/Thr protein kinases that play critical roles in cell proliferation. Provided herein are compounds that specifically inhibit the activity of Plks, specifically Plk1. Further provided herein are methods for use of the compounds for the treatment of hyperproliferative disorders, particularly cancer. Also provided are uses of the compounds for the preparation of a medicament.
    Type: Grant
    Filed: May 17, 2010
    Date of Patent: November 3, 2015
    Assignee: The United States of America, as represented by the Secretary, Department of Health & Human Services
    Inventors: Terrence R. Burke, Jr., Fa Liu, Kyung S. Lee, Jung-Eun Park
  • Patent number: 9145450
    Abstract: The invention relates to the field of compounds, especially peptides or polypeptides, that have thrombopoietic activity. The peptides and polypeptides of the invention may be used to increase platelets or platelet precursors (e.g., megakaryocytes) in a mammal.
    Type: Grant
    Filed: January 19, 2006
    Date of Patent: September 29, 2015
    Assignee: AMGEN INC.
    Inventors: Chuan-Fa Liu, Ulrich Feige, Janet C. Cheetham
  • Patent number: 9023957
    Abstract: The present invention generally relates to processes and methods of peptide and protein synthesis. The present invention also relates to specific compounds for use in such processes and methods. It is shown herein that peptides with a C-terminal tertiary N,N-bis(2-mercaptoethyl)-amide (BMEA) undergo N-to-S acyl transfer at weakly acidic pH to form a transient thioester which can be captured for direct ligation with a cysteinyl peptide. These C-terminal BMEA peptides are easily prepared with standard Fmoc solid-phase synthesis protocols, thus giving a very convenient access to the thioester components for native chemical ligation.
    Type: Grant
    Filed: July 6, 2011
    Date of Patent: May 5, 2015
    Assignee: Nanyang Technological University
    Inventor: Chuan Fa Liu
  • Publication number: 20150024431
    Abstract: The invention relates to the field of compounds, especially peptides or polypeptides, that have thrombopoietic activity. The peptides and polypeptides of the invention may be used to increase platelets or platelet precursors (e.g., megakaryocytes) in a mammal.
    Type: Application
    Filed: April 30, 2014
    Publication date: January 22, 2015
    Applicant: AMGEN INC.
    Inventors: Chuan-Fa Liu, Ulrich Feige, Janet C. Cheetham
  • Publication number: 20140316105
    Abstract: The present invention is directed to a method of alkylating a thiol group (R—S—H) or seleno group (R—Se—H) in a target molecule wherein the method comprises: reacting a target molecule comprising at least one thiol group with a compound of formula (I) or (II): wherein R is an acetyl group or any other acyl group or is a group comprising any one of: or wherein R in formula (II) can also be an alkyl group; and wherein R? is selected from a group consisting of a hydrogen, a methyl group and an ethyl group.
    Type: Application
    Filed: May 14, 2012
    Publication date: October 23, 2014
    Applicant: Nanyang Technological University
    Inventors: Chuan-Fa Liu, Fupeng Li
  • Patent number: 8859490
    Abstract: Disclosed is a peptide nucleic acid monomer as well as a corresponding peptide nucleic acid molecule. The monomer comprises a terminal amino group and a terminal group A. The terminal amino group and the terminal group A are connected by an aliphatic moiety. The main chain of this aliphatic moiety is free of groups that are charged under physiological conditions. The terminal group A is one of —COOH, —COOR3, —COX, —COSR3, —CN, —CONH2, —CONHR3, —CONR3, R4, with R3 and R4 being H or an aliphatic, alicyclic, aromatic, arylaliphatic or arylalicyclic group, and X being a halogen atom. The terminal amino group is substituted by an aliphatic group with a main chain of at least two carbon atoms and optionally 0 to about 2 heteroatoms selected from the group N, O, S, Se and Si. The main chain has a polar head group Z.
    Type: Grant
    Filed: September 3, 2008
    Date of Patent: October 14, 2014
    Assignee: Nanyang Technological University
    Inventors: Chuan Fa Liu, Yun Zeng, Xiao Wei Lu
  • Patent number: 8770070
    Abstract: The present invention discloses a universal anti-torque screwdriver head structure integrally formed and divided into a polygonal insert end and a conical action end, and comprising a plurality of pull-push wings disposed around the action end, a stepped recessed formed between two adjacent pull-push wings and extended inwardly from an open end, and the recess having a longitudinal depth slightly greater than an action hole of a screw of a general specification, and the design of the stepped recess provides high-strength torque and tenacity and fits screws of various different specifications.
    Type: Grant
    Filed: April 23, 2012
    Date of Patent: July 8, 2014
    Inventor: Tsai-Fa Liu
  • Patent number: 8748571
    Abstract: The invention relates to the field of compounds, especially peptides or polypeptides, that have thrombopoietic activity. The peptides and polypeptides of the invention may be used to increase platelets or platelet precursors (e.g., megakaryocytes) in a mammal.
    Type: Grant
    Filed: October 20, 2011
    Date of Patent: June 10, 2014
    Assignee: Amgen Inc.
    Inventors: Chuan-Fa Liu, Ulrich Feige, Janet C. Cheetham
  • Publication number: 20140142044
    Abstract: Novel compounds are provided that bind to polo-like kinases through the polo-box domain. In certain embodiments, the novel compounds are PEGylated peptides. The PEGylated peptides in accordance with the invention demonstrate high PBD-binding affinity. In certain embodiments, the PEGylated peptides have also achieved activities in whole cell systems. The invention also provides compounds that bind polo-like kinases through the polo-box domain and possess reduced anionic charge. Further provided are methods of design and/or synthesis of the PEGylated peptides and methods of use thereof. The invention provides methods of use of the compounds and methods of synthesis of the compounds. The compounds of the invention have potential therapeutic activity in view of their binding and inhibitory activities towards Plk1. They are based on the amino acid sequence PLHSpT (phosphorylated Thr). The PEG moiety, when present, is covalently attached at the N-terminus.
    Type: Application
    Filed: April 12, 2012
    Publication date: May 22, 2014
    Applicant: The United States of America, as represented by the Secretary, Department of Health & Human Servic
    Inventors: Terrence R. Burke, JR., Wenjian Qian, Fa Liu, Kyung S. Lee, Jung-Eun Park
  • Patent number: 8618044
    Abstract: The invention relates to the field of compounds, especially peptides or polypeptides, that have thrombopoietic activity. The peptides and polypeptides of the invention may be used to increase platelets or platelet precursors (e.g., megakaryocytes) in a mammal.
    Type: Grant
    Filed: April 27, 2012
    Date of Patent: December 31, 2013
    Assignee: Amgen Inc.
    Inventors: Chuan-Fa Liu, Ulrich Feige, Janet C. Cheetham
  • Patent number: 8580164
    Abstract: A method of manufacturing a mold includes following steps. Providing a solution, which includes a solvent, a solute and a plurality of nanoparticles. Providing a first substrate. Spin coating the solution on the first substrate, and then vaporizing the solvent to form a first mold on the first substrate. Thus, an upper surface of the first mold has a plurality of first porous structures. The present invention further includes forming an optical film having protrusion patterns with the aforementioned mold.
    Type: Grant
    Filed: May 5, 2011
    Date of Patent: November 12, 2013
    Assignee: Chunghwa Picture Tubes, Ltd.
    Inventors: Chun-Yu Shen, Sheng-Fa Liu, Yu-Hsien Chen, Huai-An Li, Bao-Sian Ciou
  • Publication number: 20130276595
    Abstract: The present invention discloses a universal anti-torque screwdriver head structure integrally formed and divided into a polygonal insert end and a conical action end, and comprising a plurality of pull-push wings disposed around the action end, a stepped recessed formed between two adjacent pull-push wings and extended inwardly from an open end, and the recess having a longitudinal depth slightly greater than an action hole of a screw of a general specification, and the design of the stepped recess provides high-strength torque and tenacity and fits screws of various different specifications.
    Type: Application
    Filed: April 23, 2012
    Publication date: October 24, 2013
    Inventor: Tsai-Fa LIU
  • Publication number: 20130265289
    Abstract: A cholesteric liquid crystal display device includes a first substrate, a second substrate, a cholesteric liquid crystal layer and a plurality of nano particles. The first substrate includes a first alignment layer. The second substrate includes a second alignment layer. The cholesteric liquid crystal layer is disposed between the first and second alignment layers. The nano particles are disposed on a surface of one of the first and second alignment layers, and located between the one of the first and second alignment layers and the cholesteric liquid crystal layer.
    Type: Application
    Filed: September 13, 2012
    Publication date: October 10, 2013
    Inventors: Yu-Hsien CHEN, Huang-Ming Chen, Sheng-Fa Liu, Mei-Tsao Chiang, Bao-Sian Ciou
  • Patent number: 8541288
    Abstract: A manufacturing method for a TFT array substrate includes providing a substrate; defining a plurality of normal alignment regions and a plurality of abnormal alignment regions on the substrate; forming an insulating layer and a transparent conductive layer on the substrate; performing a patterning process to at least one of the insulating layer and the transparent conductive layer to form a plurality of alignment structures in each abnormal alignment region; forming an alignment material layer on the substrate, the alignment material layer having a plurality of first alignment slits formed along the alignment structures in each of the abnormal alignment regions; and performing a rubbing alignment process to form a plurality of second alignment slits on the alignment material layer in each of the normal alignment regions along a alignment direction.
    Type: Grant
    Filed: February 25, 2013
    Date of Patent: September 24, 2013
    Assignee: Chunghwa Picture Tubes, Ltd.
    Inventors: Der-Chun Wu, Yu-Hsien Chen, Sheng-Fa Liu
  • Patent number: 8471055
    Abstract: The present invention relates to photo-crosslinkable liquid crystal monomers with optical activity. The liquid crystal monomers contains one chiral center with an acrylate group or terminal diacrylate groups, and terminal dibenzene rings are introduced in order to extend its hard segment for the purpose of getting a wider liquid crystalline phase. By introducing the liquid crystal monomers, the room temperature nematic liquid crystal or the cholesteric liquid crystal may have a better mutual solubility and a wider, steadier structure of liquid crystal.
    Type: Grant
    Filed: August 14, 2011
    Date of Patent: June 25, 2013
    Assignees: Chunghwa Picture Tubes, Ltd., National Chiao Tung University
    Inventors: Yu-hsien Chen, Sheng-fa Liu, Huai-an Li, Sin-min Fuh, Hong-cheu Lin, Huang-ming Chen, Po-jen Yang, Shin-chieh Chien
  • Patent number: 8465234
    Abstract: A drilling bit with the depth-limiting and angle-leading function for the carpenter's work, having a covering sleeve (with a driving shaft) and a bit holder for securing a bit. A limit ring and a screw socket (with female thread) are screwable to the covering sleeve (with the male thread) for adjusting the depth of the spot-faced hole in a workpiece (to be drilled) according to the actual operation requirement.
    Type: Grant
    Filed: November 12, 2009
    Date of Patent: June 18, 2013
    Inventor: Tsai Fa Liu
  • Publication number: 20130131286
    Abstract: The present invention generally relates to processes and methods of peptide and protein synthesis. The present invention also relates to specific compounds for use in such processes and methods. It is shown herein that peptides with a C-terminal tertiary N,N-bis(2-mercaptoethyl)-amide (BMEA) undergo N-to-S acyl transfer at weakly acidic pH to form a transient thioester which can be captured for direct ligation with a cysteinyl peptide. These C-terminal BMEA peptides are easily prepared with standard Fmoc solid-phase synthesis protocols, thus giving a very convenient access to the thioester components for native chemical ligation.
    Type: Application
    Filed: July 6, 2011
    Publication date: May 23, 2013
    Applicant: NANYANG TECHNOLOGICAL UNIVERSITY
    Inventor: Chuan Fa Liu
  • Patent number: 8405234
    Abstract: A thin film transistor (TFT) array substrate includes a substrate having a plurality of normal alignment regions, a plurality of abnormal alignment regions, and a device region defined thereon, a plurality of scan lines, a plurality of data lines, a plurality of storage electrode lines, and a plurality of switch devices positioned in the device region, a plurality of alignment structures positioned in the abnormal alignment regions, and an alignment layer formed on the substrate and the alignment structures. The alignment layer further includes a plurality of first alignment slits covering the alignment structures in the abnormal alignment regions and a plurality of second alignment slits in the normal alignment regions. A depth and a width of the second alignment slits are identical to a depth and a width of the first alignment slits.
    Type: Grant
    Filed: April 6, 2011
    Date of Patent: March 26, 2013
    Assignee: Chunghwa Picture Tubes, Ltd.
    Inventors: Der-Chun Wu, Yu-Hsien Chen, Sheng-Fa Liu
  • Patent number: D709346
    Type: Grant
    Filed: June 4, 2013
    Date of Patent: July 22, 2014
    Inventor: Tsai-Fa Liu