Patents by Inventor Xinli Lin

Xinli Lin 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: 20230092348
    Abstract: A safety design system assists in the development of compliant industrial safety systems. User interfaces provided by the design system guide the user through an intuitive workflow for carrying out risk assessment analysis on industrial assets and designing safety functions for mitigating risks associated with the industrial assets. These user interfaces offer multiple views of safety system design aspects, including a layout view and a table view that offer alternative views of hazard and safety function data. The system also guides the user to the selection of suitable input, logic, and output devices for each safety function based on results of the risk assessment and local industrial safety standards.
    Type: Application
    Filed: September 22, 2021
    Publication date: March 23, 2023
    Inventors: David Main-Reade, Xinli Lin, Jonathan B. Johnson, Susan Stuebe, Matthew R. Kuenzi, KEVIN ZOMCHEK, TODD M. BISSELL, Burt Sacherski, LINDA A. FREEMAN, USHA R. KOLUKULA, IAN MURGATROYD
  • Publication number: 20210330762
    Abstract: Provided are methods for producing biologically active mutant recombinant plasminogen polypeptides with desired pharmaceutical properties. The refolded polypeptides may be treated with a plasminogen activator, such as tPA, urokinase, or streptokinase to generate biologically active mutant plasmin polypeptide for pharmaceutical use. Methods are also provided to producing biologically active fusion recombinant mutant plasminogen/plasmin polypeptides that can cross the BBB through receptor mediated transcytosis. The fusion partner may carry the mutant plasminogen/plasmin polypeptides into the brain for increased therapeutic efficiency.
    Type: Application
    Filed: April 23, 2020
    Publication date: October 28, 2021
    Inventors: Xinli LIN, Jiali GAO
  • Publication number: 20210121419
    Abstract: The present disclosure is related to a metformin compounded composition and application thereof. The disclosure provides active ingredients of composition dosage forms, comprising active ingredients including metformin, omega-3 fatty acid, statin, and vitamins. The whole or part of the active ingredients can be manufactured into a single dosage form for preventing or treating a special disease or enhance health in general. The diseases that can be prevented or treated include cardiovascular diseases, nervous system diseases, cancer, diabetes, autoimmune diseases, or any other diseases that can be treated with the provided formulations. Because of the broad applicability for preventing diseases and enhancing health, the application of the invented formulation may provide “health and longevity” for general population.
    Type: Application
    Filed: January 3, 2021
    Publication date: April 29, 2021
    Inventor: Xinli LIN
  • Publication number: 20200354433
    Abstract: Provided is a new AAT triple-mutant, and methods to produce and purify the new entity. The new mutant is produced by a structure-based protein design to provide a more thermostable and oxidation-resistant agent for various pharmaceutical applications. The present invention also provides methods for E. coli expression, inclusion body refolding, and purification of the triple-mutant. Furthermore, the invention also provides methods for chemically modifying the purified drug candidate to provide a longer in vivo half-life and achieve better drug efficacy.
    Type: Application
    Filed: July 29, 2020
    Publication date: November 12, 2020
    Inventors: Xinli LIN, Lanfen LI
  • Publication number: 20120165268
    Abstract: Biologically active tetrameric p53 proteins and p53 fusion proteins are provided. These proteins may be generated and refolded into tetrameric form using denatured proteins produced from E. coli. Therapeutic uses of p53 proteins and p53 fusion proteins are also provided.
    Type: Application
    Filed: May 28, 2009
    Publication date: June 28, 2012
    Applicant: Proteom Tech, Inc.
    Inventors: Xinli Lin, Michelle Lafevre-Bernt
  • Patent number: 7829669
    Abstract: Methods for the production of purified, catalytically active, recombinant memapsin 2 have been developed. The substrate and subsite specificity of the catalytically active enzyme have been determined. The substrate and subsite specificity information was used to design substrate analogs of the natural memapsin 2 substrate that can inhibit the function of memapsin 2. The substrate analogs are based on peptide sequences, shown to be related to the natural peptide substrates for memapsin 2. The substrate analogs contain at least one analog of an amide bond which is not capable of being cleaved by memapsin 2. Processes for the synthesis of two substrate analogues including isosteres at the sites of the critical amino acid residues were developed and the substrate analogues, OMR99-1 and OM99-2, were synthesized. OM99-2 is based on an octapeptide Glu-Val-Asn-Leu-Ala-Ala-Glu-Phe (SEQ ID NO:28) with the Leu-Ala peptide bond substituted by a transition-state isostere hydroxyethylene group (FIG. 1).
    Type: Grant
    Filed: August 3, 2007
    Date of Patent: November 9, 2010
    Assignees: Oklahoma Medical Research Foundation, The Board of Trustees of the University of Illinois
    Inventors: Gerald Koelsch, Jordan J. N. Tang, Lin Hong, Arun K. Ghosh, Xinli Lin
  • Publication number: 20100144622
    Abstract: Methods of producing properly refolded recombinant plasminogen and plasmin polypeptide are provided. Denatured recombinant plasminogen polypeptide is refolded by first solubilizing the polypeptide with a chaotroph and reducing and oxidizing agents at high pH, followed by refolding in the presence of reduced concentration of chaotroph and reducing and oxidizing agents and in the presence of arginine.
    Type: Application
    Filed: September 28, 2007
    Publication date: June 10, 2010
    Inventors: Xinli Lin, Daniel Medynski
  • Publication number: 20080112946
    Abstract: Methods for the production of purified, catalytically active, recombinant memapsin 2 have been developed. The substrate and subsite specificity of the catalytically active enzyme have been determined. The substrate and subsite specificity information was used to design substrate analogs of the natural memapsin 2 substrate that can inhibit the function of memapsin 2. The substrate analogs are based on peptide sequences, shown to be related to the natural peptide substrates for memapsin 2. The substrate analogs contain at least one analog of an amide bond which is not capable of being cleaved by memapsin 2. Processes for the synthesis of two substrate analogues including isosteres at the sites of the critical amino acid residues were developed and the substrate analogues, OMR99-1 and OM99-2, were synthesized. OM99-2 is based on an octapeptide Glu-Val-Asn-Leu-Ala-Ala-Glu-Phe (SEQ ID NO:28) with the Leu-Ala peptide bond substituted by a transition-state isostere hydroxyethylene group (FIG. 1).
    Type: Application
    Filed: August 3, 2007
    Publication date: May 15, 2008
    Inventors: Gerald Koelsch, Jordan J. N. Tang, Lin Hong, Arun K. Ghosh, Xinli Lin
  • Publication number: 20070218535
    Abstract: Methods of producing properly folded recombinant ?1-antitrypsin (AAT) polypeptide are provided. Denatured recombinant AAT polypeptide is refolded by first solubilizing the polypeptide with a chaotroph at high pH, followed by refolding in the presence of reduced concentrations of chaotroph and in the presence of PEG, glycerol or sucrose, or a detergent while the pH is slowly reduced and is generally maintained.
    Type: Application
    Filed: November 28, 2006
    Publication date: September 20, 2007
    Inventors: Xinli Lin, Daniel Medynski
  • Publication number: 20070009506
    Abstract: Highly efficient methods of producing properly folded recombinant urokinase are provided. Denatured recombinant pro-urokinase is refolded by first solubilizing the protein with a chaotroph at high pH, followed by refolding in the presence of reduced concentrations of chaotroph while the pH is slowly reduced.
    Type: Application
    Filed: May 31, 2006
    Publication date: January 11, 2007
    Inventor: Xinli Lin
  • Publication number: 20060287504
    Abstract: A universal folding method that has been demonstrated to be effective in refolding a variety of very different proteins expressed in bacteria as inclusion bodies has been developed. Representative proteins that can be dissolved and refolded in biologically active form, with the native structure, are shown in Table I. The method has two key steps to unfold and then refold the proteins expressed in the inclusion bodies. The first step is to raise the pH of the protein solution in the presence of denaturing agents to pH greater than 9, preferably 10. The protein solution may be maintained at the elevated pH for a period of up to about 24 hours, or the pH immediately decreased slowly, in increments of about 0.2 pH units/24 hours, until the solution reaches a pH of about 8.0, or both steps used. In the preferred embodiment, purified inclusion bodies are dissolved in 8 M urea, 0.1 M Tris, 1 mM glycine, 1 mM EDTA, 10 mM beta-mercaptoethanol, 10 mM dithiothreitol (DTT), 1 mM redued glutathion (GSH), 0.
    Type: Application
    Filed: August 18, 2006
    Publication date: December 21, 2006
    Inventor: Xinli Lin
  • Patent number: 7119166
    Abstract: A universal folding method that has been demonstrated to be effective in refolding a variety of very different proteins expressed in bacteria as inclusion bodies has been developed. Representative proteins that can be dissolved and refolded in biologically active form, with the native structure, are shown in Table I. The method has two key steps to unfold and then refold the proteins expressed in the inclusion bodies. The first step is to raise the pH of the protein solution in the presence of denaturing agents to pH greater than 9, preferably 10. The protein solution may be maintained at the elevated pH for a period of up to about 24 hours, or the pH immediately decreased slowly, in increments of about 0.2 pH units/24 hours, until the solution reaches a pH of about 8.0, or both steps used. In the preferred embodiment, purified inclusion bodies are dissolved in 8 M urea, 0.1 M Tris, 1 mM glycine, 1 mM EDTA, 10 mM beta-mercaptoethanol, 10 mM dithiothreitol (DTT), 1 mM reduced glutathione (GSH), 0.
    Type: Grant
    Filed: April 17, 2003
    Date of Patent: October 10, 2006
    Assignee: Oklahoma Medical Research Foundation
    Inventor: Xinli Lin
  • Publication number: 20050233961
    Abstract: The invention features methods and compositions for treating cancer by administering an effective amount of a VEGI-192A polypeptide. In some embodiments, the cancer is lung cancer or breast cancer.
    Type: Application
    Filed: December 13, 2004
    Publication date: October 20, 2005
    Inventors: Xinli Lin, Luyuan Li
  • Publication number: 20050227920
    Abstract: Methods of producing properly folded recombinant VEGI polypeptide are provided. Denatured recombinant VEGI polypeptide is refolded by first solubilizing the polypeptide with a chaotroph at high pH, followed by refolding in the presence of reduced concentrations of chaotroph and in the presence of a detergent while the pH is slowly reduced.
    Type: Application
    Filed: December 13, 2004
    Publication date: October 13, 2005
    Inventor: Xinli Lin
  • Publication number: 20050037486
    Abstract: An apparatus for refolding proteins and a method of using an apparatus for refolding proteins is provided in which a refolding process for proteins can be carried out for various proteins, efficiently and accurately, and without manual intervention.
    Type: Application
    Filed: May 13, 2004
    Publication date: February 17, 2005
    Applicants: Universal Bio Research Co., Ltd., ProteomTech, Inc.
    Inventors: Xinli Lin, Peter Burrowes, Chris Kusumoto, Hideji Tajima
  • Publication number: 20040265298
    Abstract: Highly efficient methods of producing properly folded recombinant urokinase are provided. Denatured recombinant pro-urokinase is refolded by first solubilizing the protein with a chaotroph at high pH, followed by refolding in the presence of reduced concentrations of chaotroph while the pH is slowly reduced.
    Type: Application
    Filed: April 16, 2004
    Publication date: December 30, 2004
    Inventor: Xinli Lin
  • Publication number: 20030199676
    Abstract: A universal folding method that has been demonstrated to be effective in refolding a variety of very different proteins expressed in bacteria as inclusion bodies has been developed. Representative proteins that can be dissolved and refolded in biologically active form, with the native structure, are shown in Table I. The method has two key steps to unfold and then refold the proteins expressed in the inclusion bodies. The first step is to raise the pH of the protein solution in the presence of denaturing agents to pH greater than 9, preferably 10. The protein solution may be maintained at the elevated pH for a period of up to about 24 hours, or the pH immediately decreased slowly, in increments of about 0.2 pH units/24 hours, until the solution reaches a pH of about 8.0, or both steps used. In the preferred embodiment, purified inclusion bodies are dissolved in 8 M urea, 0.1 M Tris, 1 mM glycine, 1 mM EDTA, 10 mM beta-mercaptoethanol, 10 mM dithiothreitol (DTT), 1 mM redued glutathion (GSH), 0.
    Type: Application
    Filed: April 17, 2003
    Publication date: October 23, 2003
    Applicant: Oklahoma Medical Research Foundation
    Inventor: Xinli Lin
  • Patent number: 6583268
    Abstract: A universal folding method that has been demonstrated to be effective in refolding a variety of very different proteins expressed in bacteria as inclusion bodies has been developed. Representative proteins that can be dissolved and refolded in biologically active form, with the native structure, are shown in Table I. The method has two key steps to unfold and then refold the proteins expressed in the inclusion bodies. The first step is to raise the pH of the protein solution in the presence of denaturing agents to pH greater than 9, preferably 10. The protein solution may be maintained at the elevated pH for a period of up to about 24 hours, or the pH immediately decreased slowly, in increments of about 0.2 pH units/24 hours, until the solution reaches a pH of about 8.0, or both steps used. In the preferred embodiment, purified inclusion bodies are dissolved in 8 M urea, 0.1 M Tris, 1 mM glycine, 1 mM EDTA, 10 mM beta-mercaptoethanol, 10 mM dithiothreitol (DTT), 1 mM redued glutathion (GSH), 0.
    Type: Grant
    Filed: December 28, 2000
    Date of Patent: June 24, 2003
    Assignee: Oklahoma Medical Research Foundation
    Inventor: Xinli Lin
  • Patent number: 6545127
    Abstract: Methods for the production of purified, catalytically active, recombinant memapsin 2 have been developed. The substrate and subsite specificity of the catalytically active enzyme have been determined. The substrate and subsite specificity information was used to design substrate analogs of the natural memapsin 2 substrate that can inhibit the function of memapsin 2. The substrate analogs are based on peptide sequences, shown to be related to the natural peptide substrates for memapsin 2. The substrate analogs contain at least one analog of an amide bond which is not capable of being cleaved by memapsin 2. Processes for the synthesis of two substrate analogues including isosteres at the sites of the critical amino acid residues were developed and the substrate analogues, OMR99-1 and OM99-2, were synthesized. OM99-2 is based on an octapeptide Glu-Val-Asn-Leu-Ala-Ala-Glu-Phe (SEQ ID NO:28) with the Leu-Ala peptide bond substituted by a transition-state isostere hydroxyethylene group (FIG. 1).
    Type: Grant
    Filed: June 27, 2000
    Date of Patent: April 8, 2003
    Assignee: Oklahoma Medical Research Foundation
    Inventors: Jordan J. N. Tang, Xinli Lin, Gerald Koelsch, Lin Hong
  • Publication number: 20020164760
    Abstract: Methods for the production of purified, catalytically active, recombinant memapsin 2 have been developed. The substrate and subsite specificity of the catalytically active enzyme have been determined. The substrate and subsite specificity information was used to design substrate analogs of the natural memapsin 2 substrate that can inhibit the function of memapsin 2. The substrate analogs are based on peptide sequences, shown to be related to the natural peptide substrates for memapsin 2. The substrate analogs contain at least one analog of an amide bond which is not capable of being cleaved by memapsin 2. Processes for the synthesis of two substrate analogues including isosteres at the sites of the critical amino acid residues were developed and the substrate analogues, OMR99-1 and OM99-2, were synthesized. OM99-2 is based on an octapeptide Glu-Val-Asn-Leu-Ala-Ala-Glu-Phe (SEQ ID NO:28) with the Leu-Ala peptide bond substituted by a transition-state isostere hydroxyethylene group (FIG. 1).
    Type: Application
    Filed: February 28, 2001
    Publication date: November 7, 2002
    Applicant: Oklahoma Medical Research Foundation
    Inventors: Xinli Lin, Gerald Koelsch, Jordan J.N. Tang