Patents by Inventor Yingfu Li

Yingfu Li 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: 20140005176
    Abstract: Provided herein are 2-phenoxy- and 2-phenylsulfonamide derivatives with CCR3 antagonistic activity. These compounds are useful for the treatment of diseases associated with CCR3 activity, including but not limited to, atopic dermatitis, allergic rhinitis, rheumatoid arthritis, Grave's disease, HIV infection, Alzheimer's disease, atherosclerosis and other inflammatory and/or immunological disorders.
    Type: Application
    Filed: August 26, 2013
    Publication date: January 2, 2014
    Applicant: AXIKIN PHARMACEUTICALS, INC.
    Inventors: Yingfu Li, Kevin Bacon, Hiromi Sugimoto, Keiko Fukushima, Kentaro Hashimoto, Makiko Marumo, Toshiya Moriwaki, Noriko Nunami, Naoki Tsuno, Klaus Urbahns, Nagahiro Yoshida
  • Patent number: 8242118
    Abstract: The present invention relates to a sulfonamide derivative which is useful as an active ingredient of pharmaceutical preparations. The sulfonamide derivatives of the present invention have CCR3 (CC type chemokine receptor) antagonistic activity, and can be used for the prophylaxis and treatment of diseases associated with CCR3 activity, in particular for the treatment of asthma, atopic dermatitis, allergic rhinitis and other inflammatory/immunological disorders.
    Type: Grant
    Filed: April 19, 2010
    Date of Patent: August 14, 2012
    Assignee: Axikin Pharmaceuticals Inc.
    Inventors: Yingfu Li, Akihiko Watanabe, Timothy B. Lowinger, Kevin Bacon, Norihiro Kawamura, Takuya Shintani, Tetsuo Kikuchi, Toshiya Moriwaki, Klaus Urbahns, Keiko Fukushima, Noriko Nunami, Takashi Yoshino, Toshiki Murata, Megumi Yamauchi, Hiroko Yoshino
  • Publication number: 20110294125
    Abstract: The present disclosure includes a method of determining the presence of a target in a sample comprising an allosteric DNAzyme; rolling circle amplification dependent on the activity of the allosteric DNAzyme in the presence of target and a detection system. The methods further comprise quantifying the amount of target in the sample by comparing the detection with a control. Also included herein are kits for practicing the methods described herein and methods of designing biosensor systems.
    Type: Application
    Filed: December 18, 2009
    Publication date: December 1, 2011
    Applicant: MCMASTER UNIVERSITY
    Inventors: Yingfu Li, Monsur Ali
  • Publication number: 20110263566
    Abstract: 7-Hydroxy-benzoimidazole-4-yl-methanone Derivatives, which are useful for PBK inhibitors, are provided.
    Type: Application
    Filed: July 30, 2009
    Publication date: October 27, 2011
    Inventors: Yo Matsuo, Yingfu Li, Joel Walker, Feryan Ahmed, Ryuji Ohsawa, Shoji Hisada
  • Publication number: 20110190351
    Abstract: Benzoimidazole Derivatives are provided. The compounds of the present invention are useful for Glycogen Synthase Kinase-3 Beta Inhibitors.
    Type: Application
    Filed: July 30, 2009
    Publication date: August 4, 2011
    Applicant: Oncotherapy Science, Inc.
    Inventors: Mitsuaki Ohtani, Yo Matsuo, Yingfu Li, Joel R. Walker, David M. Jenkins, Feryan Ahmed, Ryuji Ohsawa, Shoji Hisada
  • Patent number: 7910710
    Abstract: Methods for the selection of novel signaling allosteric DNA enzymes are provided. In particular, fluorescent signaling allosteric DNA enzymes are described. The selection system is based on the cleavage of an ribonucleotide flanked by a fluorophore modified nucleotide and a quencher modified oligonucleotide. Both cis-acting and trans-acting allosteric DNA enzymes are identified, as well as aptamer/DNA enzyme conjugates.
    Type: Grant
    Filed: February 11, 2003
    Date of Patent: March 22, 2011
    Assignee: McMaster University
    Inventors: Yingfu Li, John Brennan, Shirley Mei, Zhongjie Liu
  • Publication number: 20110059441
    Abstract: The present disclosure relates to methods for attaching bioactive agents to paper products by contacting the paper with a solution comprising colloidal support particles where said colloidal support particles are associated with bioactive agents. In specific embodiment of the disclosure, the colloidal support particles are functionalized poly(N-isopropylacrylamide) microgels. The disclosure further covers the bioactive paper produced by this method as well as uses thereof, in particular for pathogen detection.
    Type: Application
    Filed: April 16, 2008
    Publication date: March 10, 2011
    Applicant: MCMASTER UNIVERSITY
    Inventors: Robert Pelton, Shunxing Su, Carlos Filipe, Yingfu Li
  • Publication number: 20100204213
    Abstract: The present invention relates to a sulfonamide derivative which is useful as an active ingredient of pharmaceutical preparations. The sulfonamide derivatives of the present invention have CCR3 (CC type chemokine receptor) antagonistic activity, and can be used for the prophylaxis and treatment of diseases associated with CCR3 activity, in particular for the treatment of asthma, atopic dermatitis, allergic rhinitis and other inflammatory/immunological disorders.
    Type: Application
    Filed: April 19, 2010
    Publication date: August 12, 2010
    Inventors: Yingfu LI, Akihiko Watanabe, Timothy B. Lowinger, Kevin Bacon, Norihiro Kawamura, Takuya Shintani, Tetsuo Kikuchi, Toshiya Moriwaki, Klaus Urbahns, Keiko Eukushima, Noriko Nunami, Takashi Yoshino, Toshiki Murata, Megumi Yamauchi, Hiroko Yoshino
  • Publication number: 20100173347
    Abstract: The present disclosure relates to water-soluble stable gold nanoparticles (AuNPs) and methods for making the same. The present disclosure also includes the use of AuNPs, for example, in biological, medical and environmental assays for the detection of analytes, as well as biological and medical imaging.
    Type: Application
    Filed: April 2, 2008
    Publication date: July 8, 2010
    Inventors: Michael A. Brook, Yingfu Li, Ferdinand Gonzaga, Weian Zhao, Monsur M. Ali, Sergio D. Aguirre
  • Patent number: 7750017
    Abstract: This invention relates to novel compounds and processes for their preparation, methods of treating diseases, particularly hyperproliferative diseases such as cancer, comprising administering said compounds, and methods of making pharmaceutical compositions for the treatment or prevention of disorders, particularly hyperproliferative diseases such as cancer.
    Type: Grant
    Filed: October 14, 2005
    Date of Patent: July 6, 2010
    Assignee: Bayer Schering Pharma Aktiengesellschaft
    Inventors: Chengzhi Zhang, Roger Smith, Jason Duquette, Qian Zhao, Jacques Dumas, Georgiy Bondar, Yingfu Li, Dongping Fan
  • Patent number: 7745607
    Abstract: The present invention provides a method for the selection of aptamer sequences and aptamers identified using the method. The method comprises immobilizing a library oligonucleotide by forming a duplex with an antisense oligonucleotide, reating the duplex molecule with a target and collecting oligonucleotide molecules which dissociate from the duplex structure.
    Type: Grant
    Filed: March 31, 2004
    Date of Patent: June 29, 2010
    Assignee: McMaster University
    Inventors: Yingfu Li, Razvan Nutiu
  • Patent number: 7700586
    Abstract: The present invention relates to a sulfonamide derivative which is useful as an active ingredient of pharmaceutical preparations. The sulfonamide derivatives of the present invention have CCR3 (CC type chemokine receptor) antagonistic activity, and can be used for the prophylaxis and treatment of diseases associated with CCR3 activity, in particular for the treatment of asthma, atopic dermatitis, allergic rhinitis and other inflammatory/immunological disorders.
    Type: Grant
    Filed: September 4, 2002
    Date of Patent: April 20, 2010
    Assignee: Axikin Pharmaceuticals, Inc.
    Inventors: Yingfu Li, Akihiko Watanabe, Timothy B. Lowinger, Kevin Bacon, Norihiro Kawamura, Takuya Shintani, Tetsuo Kikuchi, Toshiya Moriwaki, Klaus Urbahns, Keiko Fukushima, Noriko Nunami, Takashi Yoshino, Toshiki Murata, Megumi Yamauchi, Hiroko Yoshino
  • Patent number: 7674797
    Abstract: The present invention relates to a benzenesulfonamide derivative of formula (I), which is useful as an active ingredient of pharmaceutical preparations. The benzenesulfonamide derivatives of the present invention have CCR3 (CC type chemokine receptor) antagonistic activity, and can be used for the prophylaxis and treatment of diseases associated with CCR3 activity, in particular for the treatment of asthma, atopic dermatitis, allergic rhinitis and other inflammatory/immunological disorders. In said formula, X represents O or S; R4 represents formulae (a), (b), (c), (d), (e), (f), (g), (h), (i) or (j), the other substituents are as defined in claim 1.
    Type: Grant
    Filed: March 11, 2004
    Date of Patent: March 9, 2010
    Assignee: Axikin Pharmaceuticals, Inc.
    Inventors: Yingfu Li, Kevin Bacon, Hiromi Sugimoto, Keiko Fukushima, Kentaro Hashimoto, Makiko Marumo, Toshiya Moriwaki, Noriko Nunami, Naoki Tsuno, Klaus Urbahns, Nagahiro Yoshida
  • Publication number: 20090286771
    Abstract: Provided herein are 2-phenoxy- and 2-phenylsulfonamide derivatives with CCR3 antagonistic activity. These compounds are useful for the treatment of diseases associated with CCR3 activity, including but not limited to, atopic dermatitis, allergic rhinitis, rheumatoid arthritis, Grave's disease, HIV infection, Alzheimer's disease, atherosclerosis and other inflammatory and/or immunological disorders.
    Type: Application
    Filed: July 16, 2009
    Publication date: November 19, 2009
    Inventors: Yingfu Li, Kevin Bacon, Hiromi Sugimoto, Keiko Fukushima, Kentaro Hashimoto, Makiko Marumo, Toshiya Moriwaki, Noriko Nunami, Naoki Tsuno, Klaus Urbahns, Nagahiro Yoshida
  • Publication number: 20090082328
    Abstract: This invention relates to novel substituted phenylamino-benzene compounds, pharmaceutical compositions containing such compounds and the use of those compounds or compositions for treating hyper-proliferative and/or angiogenesis disorders, as a sole agent or in combination with other active ingredients.
    Type: Application
    Filed: May 9, 2008
    Publication date: March 26, 2009
    Inventors: Yingfu Li, Joachim Rudolph, Jacques P. Dumas, Daniel Auclair, Mario Lobell, Marion Hitchcock, Ingo Hartung, Marcus Koppitz, Dominic Brittain, Florian Puehler, Kirstin Petersen, Judith Guenther
  • Publication number: 20080132497
    Abstract: This invention relates to novel compounds and processes for their preparation, methods of treating diseases, particularly hyperproliferative diseases such as cancer, comprising administering said compounds, and methods of making pharmaceutical compositions for the treatment or prevention of disorders, particularly hyperproliferative diseases such as cancer.
    Type: Application
    Filed: October 14, 2005
    Publication date: June 5, 2008
    Applicant: Bayer Pharmaceuticals Corporation
    Inventors: Chengzhi Zhang, Roger Smith, Jason Duquette, Qian Zhao, Jacques Dumas, Georgiy Bondar, Yingfu Li, Dongping Fan
  • Publication number: 20070243529
    Abstract: The present invention provides a method for the selection of aptamer sequences and aptamers identified using the method. The method comprises immobilizing a library oligonucleotide by forming a duplex with an antisense oligonucleotide, reating the duplex molecule with a target and collecting oligonucleotide molecules which dissociate from the duplex structure.
    Type: Application
    Filed: March 31, 2004
    Publication date: October 18, 2007
    Inventors: Yingfu Li, Razvan Nutiu
  • Publication number: 20070155725
    Abstract: The present invention relates to a benzenesulfonamide derivative of formula (I), which is useful as an active ingredient of pharmaceutical preparations. The benzenesulfonamide derivatives of the present invention have CCR3 (CC type chemokine receptor) antagonistic activity, and can be used for the prophylaxis and treatment of diseases associated with CCR3 activity, in particular for the treatment of asthma, atopic dermatitis, allergic rhinitis and other inflammatory/immunological disorders. In said formula, X represents O or S; R4 represents formulae (a), (b), (c), (d), (e), (f), (g), (h), (i) or (j), the other substituents are as defined in claim 1.
    Type: Application
    Filed: March 11, 2004
    Publication date: July 5, 2007
    Inventors: Yingfu Li, Kevin Bacon, Hiromi Sugimoto, Keiko Fukushima, Kentaro Hashimoto, Makiko Marumo, Toshiya Moriwaki, Noriko Nunami, Naoki Tsuno, Klaus Urbahns, Nagahiro Yoshida
  • Publication number: 20060292561
    Abstract: Methods for the selection of novel signaling allosteric DNA enzymes are provided. In particular, fluorescent signaling allosteric DNA enzymes are described. The selection system is based on the cleavage of an ribonucleotide flanked by a fluorophore modified nucleotide and a quencher modified oligonucleotide. Both cis-acting and trans-acting allosteric DNA enzymes are identified, as well as aptamer/DNA enzyme conjugates.
    Type: Application
    Filed: February 11, 2003
    Publication date: December 28, 2006
    Inventors: Yingfu Li, John Brennan, Hsin-Ju Mei, Zhongjie Liu
  • Publication number: 20060275854
    Abstract: Methods for monitoring chemical reactions in real time are provided. The methods involve the use of a signaling aptamer that has a different affinity for the substrate and the product of the chemical reaction. The conversion from substrate to product is detected a change in signal, in particular a change in fluorescent signal. The methods of the present invention are also useful to measure enzyme activity and to screen for enzyme inhibitors.
    Type: Application
    Filed: June 29, 2004
    Publication date: December 7, 2006
    Inventors: Yingfu Li, Razvan Nutiu