Patents by Inventor Qun Sun

Qun Sun 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: 20110071192
    Abstract: A compound of formula: where Ar1, Ar2, X, R3, and m are as disclosed herein or a pharmaceutically acceptable salt thereof (a “Cycloheteroalkenyl Compound”); compositions comprising an effective amount of a Cycloheteroalkenyl Compound; and methods for treating or preventing pain, UI, an ulcer, IBD, IBS, an addictive disorder, Parkinson's disease, parkinsonism, anxiety, epilepsy, stroke, a seizure, a pruritic condition, psychosis, a cognitive disorder, a memory deficit, restricted brain function, Huntington's chorea, amyotrophic lateral sclerosis, dementia, retinopathy, a muscle spasm, a migraine, vomiting, dyskinesia, or depression in an animal comprising administering to an animal in need thereof an effective amount of a Cycloheteroalkenyl Compound are disclosed herein.
    Type: Application
    Filed: September 21, 2010
    Publication date: March 24, 2011
    Applicant: Purdue Pharma L.P.
    Inventors: Qun Sun, Xin Wen
  • Publication number: 20110008554
    Abstract: The present invention relates to a composition comprising a polyester, a copolyester ether and an oxidation catalyst, wherein the copolyester ether comprises a polyether segment comprising poly(tetramethylene-co-alkylene ether). The composition has oxygen scavenging properties and produces articles having low haze. Other embodiments of the present invention disclosed herein are articles made from the composition and methods to make such articles.
    Type: Application
    Filed: August 22, 2008
    Publication date: January 13, 2011
    Applicant: INVISTA North America S.a.r.I.
    Inventors: Yan Chen, Qun Sun, Joseph Drbohlav
  • Publication number: 20110009418
    Abstract: The present invention discloses compounds of formula: where Ar1, Ar2, X, R3, and m are as disclosed herein or a pharmaceutically acceptable salt thereof (a “Phenylene Compound”); compositions comprising an effective amount of a Phenylene Compound; and methods for treating or preventing pain and other conditions in an animal comprising administering to an animal in need thereof an effective amount of a Phenylene Compound.
    Type: Application
    Filed: July 29, 2010
    Publication date: January 13, 2011
    Applicant: Purdue Pharma L.P.
    Inventor: Qun Sun
  • Publication number: 20100331369
    Abstract: A compound of formula: where Ar1, Ar2, X, R3, and m are as disclosed herein or a pharmaceutically acceptable salt thereof (a “Cycloheteroalkenyl Compound”); compositions comprising an effective amount of a Cycloheteroalkenyl Compound; and methods for treating or preventing pain, UI, an ulcer, IBD, IBS, an addictive disorder, Parkinson's disease, parkinsonism, anxiety, epilepsy, stroke, a seizure, a pruritic condition, psychosis, a cognitive disorder, a memory deficit, restricted brain function, Huntington's chorea, amyotrophic lateral sclerosis, dementia, retinopathy, a muscle spasm, a migraine, vomiting, dyskinesia, or depression in an animal comprising administering to an animal in need thereof an effective amount of a Cycloheteroalkenyl Compound are disclosed herein.
    Type: Application
    Filed: June 17, 2010
    Publication date: December 30, 2010
    Applicant: Purdue Pharma L.P.
    Inventors: Qun Sun, Xin Wen
  • Patent number: 7855210
    Abstract: A compound of formula: wherein Ar, Ar1, Ar2, R3, R4, R5, R6, R13, m, t, and x are disclosed herein, or a pharmaceutically acceptable salt thereof (a “Hydroxyiminopiperazine Compound”); compositions comprising an effective amount of a Hydroxyiminopiperazine Compound; and methods for treating or preventing pain and other conditions in an animal comprising administering to an animal in need thereof an effective amount of a Hydroxyiminopiperazine Compound are disclosed.
    Type: Grant
    Filed: September 29, 2008
    Date of Patent: December 21, 2010
    Assignee: Purdue Pharma, L.P.
    Inventors: Qun Sun, Xiaoming Zhou
  • Publication number: 20100317670
    Abstract: The present invention discloses a compound of formula: where Ar1, Ar2, X, Z1, Z2, R3, and m are as disclosed herein or a pharmaceutically acceptable salt thereof (a “Pyridylene Compound”); compositions comprising an effective amount of a Pyridylene Compound; and methods for treating or preventing pain or other conditions in an animal comprising administering to an animal in need thereof an effective amount of a Pyridylene Compound.
    Type: Application
    Filed: July 21, 2010
    Publication date: December 16, 2010
    Applicant: PURDUE PHARMA L.P.
    Inventor: QUN SUN
  • Publication number: 20100267905
    Abstract: The present invention provides a process for manufacturing copolyether glycol having a mean molecular weight of from about 650 to about 5000 dalton by polymerization of tetrahydrofuran and at least one alkylene oxide in the presence of an acid catalyst and at least one compound containing reactive hydrogen atoms. More particularly, the invention relates to a process for manufacturing copolyether glycol which comprises recycle to the polymerization reaction step of at least a portion of the oligomeric cyclic ether which is co-produced with the copolyether glycol.
    Type: Application
    Filed: April 15, 2009
    Publication date: October 21, 2010
    Applicant: INVISTA NORTH AMERICA S.A R.L.
    Inventors: Qun Sun, Gary L. Kiser, Robert D. Orlandi
  • Publication number: 20100264365
    Abstract: The present invention relates to a novel method for compatibilizing, i.e. improving miscibility of, otherwise immiscible organic materials highly useful in the fibers industry, as well as the compatibilized product of the method. These compatibilized products are stable in the liquid phase at temperatures ranging from about 40° C. to about 200° C. The method involves use of a glycol derived from polymerization of alkylene oxide and tetrahydrofuran, the alkylene oxide having from 2 to 4 carbon atoms, i.e. poly(tetramethylene-co-alkyleneether) glycol, in the mixture.
    Type: Application
    Filed: April 15, 2009
    Publication date: October 21, 2010
    Applicant: INVISTA NORTH AMERICA S.A.R.L.
    Inventors: QUN SUN, Edwin L. McInnis
  • Publication number: 20100267926
    Abstract: The present invention relates to a continuous process for manufacturing copolyether glycols with high incorporation of alkylene oxide by polymerization of tetrahydrofuran and at least one alkylene oxide in the presence of an acid catalyst, at least one compound containing reactive hydrogen atoms, and a specific diluent or solvent. More particularly, the invention relates to a diluent or solvent-assisted continuous process for manufacturing copolyether glycols with high incorporation of alkylene oxide.
    Type: Application
    Filed: April 15, 2009
    Publication date: October 21, 2010
    Applicant: INVISTA NORTH AMERICA S.A.R.L
    Inventors: QUN SUN, Robert D. Orlandi
  • Publication number: 20100256111
    Abstract: The invention provides a compound of formula (I): (where R1, Q, A and R2 are disclosed herein) or a pharmaceutically acceptable salt thereof (a “Pyridine-alkynyl Compound”); pharmaceutical compositions comprising an effective amount of a Pyridine-alkynyl Compound; and methods for treating or preventing a condition such as pain, urinary incontinence, an addictive disorder, Parkinson's disease, parkinsonism, anxiety, epilepsy, a seizure, stroke, a pruritic condition, psychosis, a cognitive disorder, a memory deficit, restricted brain function, Huntington's chorea, amyotrophic lateral sclerosis, dementia, retinopathy, a muscle spasm, a migraine, vomiting, dyskinesia or depression in an animal comprising administering to an animal in need thereof an effective amount of a Pyridine-alkynyl Compound.
    Type: Application
    Filed: May 24, 2010
    Publication date: October 7, 2010
    Applicant: Purdue Pharma L.P.
    Inventors: Donald J. Kyle, Qun Sun, Xiaoming Zhou
  • Publication number: 20100240675
    Abstract: Compounds of formulae: where X is S or O and Ar2, R1, R2, R3, R8, n, m, t, and v are disclosed herein, or a pharmaceutically acceptable salt thereof (a “3-substituted Pyridyl Compound”), compositions comprising an effective amount of a 3-substituted Pyridyl Compound, and methods for treating or preventing pain, urinary incontinence, an ulcer, inflammatory-bowel disease, irritable-bowel syndrome, an addictive disorder, Parkinson's disease, parkinsonism, anxiety, epilepsy, stroke, a seizure, a pruritic condition, psychosis, a cognitive disorder, a memory deficit, restricted brain function, Huntington's chorea, amyotrophic lateral sclerosis, dementia, retinopathy, a muscle spasm, a migraine, vomiting, dyskinesia or depression in an animal comprising administering to an animal in need thereof an effective amount of a 3-substituted Pyridyl Compound are disclosed herein.
    Type: Application
    Filed: March 2, 2010
    Publication date: September 23, 2010
    Applicant: Purdue Pharma L.P.
    Inventors: Donald J. KYLE, Qun Sun
  • Patent number: 7799807
    Abstract: The present invention discloses compounds of formula: where Ar1, Ar2, X, R1, R2, R3, m, and n are as disclosed herein or a pharmaceutically acceptable salt thereof (a “Phenylene Compound”); compositions comprising an effective amount of a Phenylene Compound; and methods for treating or preventing pain and other conditions in an animal comprising administering to an animal in need thereof an effective amount of a Phenylene Compound.
    Type: Grant
    Filed: March 20, 2006
    Date of Patent: September 21, 2010
    Assignee: Purdue Pharma L.P.
    Inventor: Qun Sun
  • Patent number: 7799786
    Abstract: A compound of formula: wherein A, Ar, R3, R6, and m are disclosed herein, or a pharmaceutically acceptable salt thereof (a “Cyanoiminopiperazine Compound”), compositions comprising an effective amount of a Cyanoiminopiperazine Compound, and methods for treating or preventing pain, urinary incontinence, an ulcer, inflammatory-bowel disease, irritable-bowel syndrome, an addictive disorder, Parkinson's disease, parkinsonism, anxiety, epilepsy, stroke, a seizure, a pruritic condition, psychosis, a cognitive disorder, a memory deficit, restricted brain function, Huntington's chorea, amyotrophic lateral sclerosis, dementia, retinopathy, a muscle spasm, a migraine, vomiting, dyskinesia or depression in an animal comprising administering to an animal in need thereof an effective amount of a Cyanoiminopiperazine Compound are disclosed.
    Type: Grant
    Filed: September 4, 2007
    Date of Patent: September 21, 2010
    Assignee: Purdue Pharma L.P.
    Inventors: Donald J. Kyle, Qun Sun, Laykea Tafesse, Chongwu Zhang, Xiaoming Zhou
  • Publication number: 20100210686
    Abstract: Piperidine Compounds; compositions comprising a Piperidine Compound; and methods for treating or preventing pain, UI, an ulcer, IBD, IBS, an addictive disorder, Parkinson's disease, parkinsonism, anxiety, epilepsy, stroke, a seizure, a pruritic condition, psychosis, a cognitive disorder, a memory deficit, restricted brain function, Huntington's chorea, amyotrophic lateral sclerosis, dementia, retinopathy, a muscle spasm, a migraine, vomiting, dyskinesia, or depression in an animal comprising administering to an animal in need thereof an effective amount of a Piperidine Compound are disclosed. In one embodiment, the Piperidine Compound has the formula: and pharmaceutically acceptable salts thereof, wherein Ar1, Ar2, X, R3, R4, and m are as disclosed herein.
    Type: Application
    Filed: July 20, 2009
    Publication date: August 19, 2010
    Applicant: Purdue Pharma L.P.
    Inventors: Qun Sun, Kate Xin Wen, Xiaoming Zhou
  • Patent number: 7776861
    Abstract: A compound of formula: where Ar1, Ar2, X, R3, and m are as disclosed herein or a pharmaceutically acceptable salt thereof (a “Cycloheteroalkenyl Compound”); compositions comprising an effective amount of a Cycloheteroalkenyl Compound; and methods for treating or preventing pain, UI, an ulcer, IBD, IBS, an addictive disorder, Parkinson's disease, parkinsonism, anxiety, epilepsy, stroke, a seizure, a pruritic condition, psychosis, a cognitive disorder, a memory deficit, restricted brain function, Huntington's chorea, amyotrophic lateral sclerosis, dementia, retinopathy, a muscle spasm, a migraine, vomiting, dyskinesia, or depression in an animal comprising administering to an animal in need thereof an effective amount of a Cycloheteroalkenyl Compound are disclosed herein.
    Type: Grant
    Filed: January 23, 2006
    Date of Patent: August 17, 2010
    Assignee: Purdue Pharma L.P.
    Inventors: Qun Sun, Xin Wen
  • Patent number: 7772254
    Abstract: The present invention discloses a compound of formula: where Ar1, Ar2, X, Z1, Z2, R3, and m are as disclosed herein or a pharmaceutically acceptable salt thereof (a “Pyridylene Compound”); compositions comprising an effective amount of a Pyridylene Compound; and methods for treating or preventing pain or other conditions in an animal comprising administering to an animal in need thereof an effective amount of a Pyridylene Compound.
    Type: Grant
    Filed: March 21, 2006
    Date of Patent: August 10, 2010
    Assignee: Purdue Pharma L.P.
    Inventor: Qun Sun
  • Patent number: 7767699
    Abstract: The invention provides a compound of formula (I): (where R1, Q, A and R2 are disclosed herein) or a pharmaceutically acceptable salt thereof (a “Pyridine-alkynyl Compound”); pharmaceutical compositions comprising an effective amount of a Pyridine-alkynyl Compound; and methods for treating or preventing a condition such as pain, urinary incontinence, an addictive disorder, Parkinson's disease, parkinsonism, anxiety, epilepsy, a seizure, stroke, a pruritic condition, psychosis, a cognitive disorder, a memory deficit, restricted brain function, Huntington's chorea, amyotrophic lateral sclerosis, dementia, retinopathy, a muscle spasm, a migraine, vomiting, dyskinesia or depression in an animal comprising administering to an animal in need thereof an effective amount of a Pyridine-alkynyl Compound.
    Type: Grant
    Filed: December 22, 2005
    Date of Patent: August 3, 2010
    Assignee: Purdue Pharma, L.P.
    Inventors: Donald J. Kyle, Qun Sun, Xiaoming Zhou
  • Patent number: 7754723
    Abstract: Compounds of formulae: where Ar1, Ar2, R3, R4, and m are disclosed herein, or a pharmaceutically acceptable salt thereof (a “Nitro(cyano)vinylpiperazine Compound”); compositions comprising an effective amount of a Nitro(cyano)vinylpiperazine Compound; and methods for treating or preventing pain and other conditions in an animal comprising administering to an animal in need thereof an effective amount of a Nitro(cyano)vinylpiperazine Compound are disclosed.
    Type: Grant
    Filed: June 28, 2006
    Date of Patent: July 13, 2010
    Inventors: Qun Sun, Laykea Tafesse
  • Publication number: 20100156322
    Abstract: The present invention mainly discloses low power non-isolated driver that can be used for LED lighting and other non-isolated power supply appliance, in which the input side is connected to an AC or DC input, a PWM control circuit is connected to the buck converter switch, a capacitor filters the output voltage ripple and an output voltage/current control circuit provides feedback signal to the PWM control circuit. The present invention has such features of less component number, low total cost, high reliability, and better line/load regulation.
    Type: Application
    Filed: December 22, 2008
    Publication date: June 24, 2010
    Inventors: Chao-Qun SUN, Shi-Hai Zhu
  • Patent number: 7737148
    Abstract: A compound of formula: wherein Ar, Ar1, Ar2, R3-R6, R13, m, and t are disclosed herein, or a pharmaceutically acceptable salt thereof (a “Hydroxyiminopiperazine Compound”); compositions comprising an effective amount of a Hydroxyiminopiperazine Compound; and methods for treating or preventing pain and other conditions in an animal comprising administering to an animal in need thereof an effective amount of a Hydroxyiminopiperazine Compound are disclosed.
    Type: Grant
    Filed: November 16, 2006
    Date of Patent: June 15, 2010
    Assignee: Purdue Pharma, L.P.
    Inventors: Qun Sun, Xiaoming Zhou