Patents by Inventor Lina Xu

Lina Xu 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: 20170151337
    Abstract: The present invention relates to compositions and uses of novel high penetration compositions or high penetration prodrugs (HPP), in particular HPPs for 4-aminophenol derivatives, which are capable of crossing biological barriers with high penetration efficiency. The HPPs herein are capable of being converted to parent active drugs or drug metabolites after crossing the biological barrier and thus can render treatments for the conditions that the parent drugs or metabolites can. Additionally, due to the ability of penetrating biological barriers, the HPPs herein are capable of reaching areas that parent drugs may not be able to access or to render a sufficient concentration at the target areas and therefore render novel treatments. The HPPs herein can be administered to a subject through various administration routes.
    Type: Application
    Filed: December 15, 2016
    Publication date: June 1, 2017
    Inventors: Chongxi YU, Lina XU
  • Publication number: 20170017656
    Abstract: A method for presenting tasks is provided. The method includes: acquiring an active index of each of tasks which are currently in operation in a terminal; ranking the tasks based on the active indices; and presenting the tasks according to a result of the ranking, wherein the active index is a frequency of the task being operated in the terminal.
    Type: Application
    Filed: July 13, 2016
    Publication date: January 19, 2017
    Inventors: Yifan ZHU, Lina XU, Wankun YANG
  • Publication number: 20160349856
    Abstract: A button operation processing method for a terminal device in a single-hand mode and the terminal device are provided. The method includes: detecting whether a terminal device is switched to the single-hand mode; detecting whether a first preset operation on a proximal physical button is received when the terminal device is switched to the single-hand mode, the proximal physical button being a physical button within a single-hand operation area on the terminal device; and performing an operation function corresponding to a distal physical button when the first preset operation on the proximal physical button is received, the distal physical button being a physical button outside the single-hand operation area on the terminal device.
    Type: Application
    Filed: May 25, 2016
    Publication date: December 1, 2016
    Inventors: Yubo Chi, Fangyu Hu, Lina Xu
  • Publication number: 20160272653
    Abstract: The novel positively charged pro-drugs of NSAIAs in the general formulas (1, 2a, 2b, 2c, or 2d) “Structure 1, 2a, 2b, 2c, or 2d” were designed and synthesized. The compounds of the general formulas (1, 2a, 2b, 2c, or 2d) “Structure 1, 2a, 2b, 2c, or 2d” indicated above can be prepared from metal salts, organic base salts, or immobilized base salts of NSAIAs with suitable halide compounds. The positively charged amino groups in the pro-drugs in this invention largely increase the solubility of the drugs in water and will bond to the negative charge on the phosphate head group of membrane. Thus, the local concentration of the outside of the membrane or skin will be very high and will facilitate the passage of these pro-drugs from a region of high concentration to a region of low concentration. This bonding will disturb the membrane a little bit and may make some room for the lipophilic portion of the pro-drug.
    Type: Application
    Filed: May 26, 2016
    Publication date: September 22, 2016
    Applicant: Techfields Pharma Co., Ltd.
    Inventors: Chongxi Yu, Lina Xu
  • Patent number: 9371284
    Abstract: The novel positively charged pro-drugs of NSAIAs in the general formulas (1, 2a, 2b, 2c, or 2d) “Structure 1, 2a, 2b, 2c, or 2d” were designed and synthesized. The compounds of the general formulas (1, 2a, 2b, 2c, or 2d) “Structure 1, 2a, 2b, 2c, or 2d” indicated above can be prepared from metal salts, organic base salts, or immobilized base salts of NSAIAs with suitable halide compounds. The positively charged amino groups in the pro-drugs in this invention largely increase the solubility of the drugs in water and will bond to the negative charge on the phosphate head group of membrane. Thus, the local concentration of the outside of the membrane or skin will be very high and will facilitate the passage of these pro-drugs from a region of high concentration to a region of low concentration. This bonding will disturb the membrane a little bit and may make some room for the lipophilic portion of the pro-drug.
    Type: Grant
    Filed: June 4, 2007
    Date of Patent: June 21, 2016
    Assignee: Techfields Pharma Co., Ltd.
    Inventors: Chongxi Yu, Lina Xu
  • Patent number: 9248109
    Abstract: The invention provides compositions of novel high penetration compositions (HPC) or high penetration prodrugs (HPP) of peptides and peptide-related compounds, which are capable of crossing biological barriers with higher penetration efficiency comparing to their parent drugs. The HPPs are capable of being converted to parent drugs or drug metabolites after crossing the biological barrier and thus can render treatments for the conditions that the parent drugs or metabolites can. Additionally, the HPPs/HPCs are capable of reaching areas that parent drugs may not be able to access or to render a sufficient concentration at the target areas and therefore render novel treatments. The HPPs/HPCs can be administered to a subject through various administration routes, e.g., locally delivered to an action site of a condition with a high concentration or systematically administered to a biological subject and enter the general circulation with a faster rate.
    Type: Grant
    Filed: November 8, 2011
    Date of Patent: February 2, 2016
    Inventors: Chongxi Yu, Lina Xu, Yuhua Chen, Binbing Yan, Shiqian Tu
  • Publication number: 20160002157
    Abstract: One aspect of the invention provides a composition of novel high penetration compositions (HPC) or a high penetration prodrug (HPP) for treatment of Parkinson's disease. The HPCs/HPPs are capable of being converted to parent active drugs or drug metabolites after crossing the biological barrier and thus can render treatments for the conditions that the parent drugs or metabolites can. Additionally, the HPPs are capable of reaching areas that parent drugs may not be able to access or to render a sufficient concentration at the target areas and therefore render novel treatments. The HPCs/HPPs can be administered to a subject through various administration routes, e.g., locally delivered to an action site of a condition with a high concentration or systematically administered to a biological subject and enter the general circulation with a faster rate.
    Type: Application
    Filed: September 15, 2015
    Publication date: January 7, 2016
    Inventors: Chongxi YU, Lina XU
  • Publication number: 20150380058
    Abstract: A recording method includes receiving a mark start instruction in a process of recording audio data and establishing a mark event according to the mark start instruction. The mark event is configured to mark the audio data. The method further includes recording at least one parameter of the mark event, receiving a mark end instruction, and ending recording of the at least one parameter of the mark event according to the mark end instruction to obtain a mark data structure.
    Type: Application
    Filed: September 3, 2015
    Publication date: December 31, 2015
    Inventors: Wei HAN, Lina XU, Wenlin WANG
  • Publication number: 20150149142
    Abstract: A method can include receiving information that defines a three-dimensional subterranean structure; splitting the three-dimensional subterranean structure into portions; generating convex hulls for the portions; and generating a discrete fracture network based at least in part on the convex hulls.
    Type: Application
    Filed: November 24, 2014
    Publication date: May 28, 2015
    Inventors: Zhenhua Li, Qingrui Li, Ping Xu, Guang Xiong, Lina Xu, Paolo Saverio Damiani
  • Publication number: 20150120511
    Abstract: A method for submitting an order for use in a terminal, includes: scanning a pre-generated near field communication (NFC) tag to obtain tag data, the tag data including an identification code of a service provider and transaction information; generating an order according to the identification code, the transaction information, and user information; and sending the order to the service provider corresponding to the identification code.
    Type: Application
    Filed: August 29, 2014
    Publication date: April 30, 2015
    Inventors: Mingxue Kangshang, Junqi Lin, Lina Xu
  • Publication number: 20150120510
    Abstract: A method for submitting an order for use in a terminal, includes: scanning a pre-generated near field communication (NFC) tag to obtain tag data, wherein the tag data includes at least an identification code of a third-party service provider and transaction information; generating an order according to the identification code, the transaction information, and user information; and sending the order for a server to process to obtain the identification code, the transaction information, and the user information, and to further send the transaction information and the user information to the third-party service provider corresponding to the identification code.
    Type: Application
    Filed: August 18, 2014
    Publication date: April 30, 2015
    Inventors: Mingxue KANGSHANG, Junqi Lin, Lina Xu
  • Publication number: 20150072961
    Abstract: The invention provides compositions of novel high penetration compositions (HPC) or high penetration prodrugs (HPP) for treatment of pulmonary conditions (e.g. asthma). The HPCs/HPPs are capable of being converted to parent active drugs or drug metabolites after crossing the biological barrier and thus can render treatments for the conditions that the parent drugs or metabolites can. Additionally, the HPPs are capable of reaching areas that parent drugs may not be able to access or to render a sufficient concentration at the target areas and therefore render novel treatments. The HPCs/HPPs can be administered to a subject through various administration routes, e.g., locally delivered to an action site of a condition with a high concentration or systematically administered to a biological subject and enter the general circulation with a faster rate.
    Type: Application
    Filed: November 14, 2014
    Publication date: March 12, 2015
    Inventors: Chongxi YU, Lina XU
  • Publication number: 20120157371
    Abstract: The invention provides compositions of novel high penetration compositions (HPC) or high penetration prodrugs (HPP) of antimicrobials and antimicrobial-related compounds, which are capable of crossing biological barriers with high penetration efficiency. The HPCs/HPPs are capable of being converted to parent active drugs or drug metabolites after crossing the biological barrier and thus can render treatments for the conditions that the parent drugs or metabolites can. Additionally, the HPPs are capable of reaching areas that parent drugs may not be able to access or to render a sufficient concentration at the target areas and therefore render novel treatments. The HPCs/HPPs can be administered to a subject through various administration routes, e.g., locally delivered to an action site of a condition with a high concentration or systematically administered to a biological subject and enter the general circulation with a faster rate.
    Type: Application
    Filed: December 12, 2011
    Publication date: June 21, 2012
    Inventors: Chongxi YU, Lina Xu, Yuhua Chen, Binbing Yan, Shiqian Tu
  • Publication number: 20120156279
    Abstract: The invention provides compositions of novel high penetration compositions (HPC) or high penetration prodrugs (HPP) of peptides and peptide-related compounds, which are capable of crossing biological barriers with higher penetration efficiency comparing to their parent drugs. The HPPs are capable of being converted to parent drugs or drug metabolites after crossing the biological barrier and thus can render treatments for the conditions that the parent drugs or metabolites can. Additionally, the HPPs/HPCs are capable of reaching areas that parent drugs may not be able to access or to render a sufficient concentration at the target areas and therefore render novel treatments. The HPPs/HPCs can be administered to a subject through various administration routes, e.g., locally delivered to an action site of a condition with a high concentration or systematically administered to a biological subject and enter the general circulation with a faster rate.
    Type: Application
    Filed: November 8, 2011
    Publication date: June 21, 2012
    Inventors: Chongxi Yu, Lina Xu, Yuhua Chen, Binbing Yan, Shiqian Tu
  • Publication number: 20100172960
    Abstract: The novel positively charged pro-drugs of NSAIAs in the general formulas (1, 2a, 2b, 2c, or 2d) “Structure 1, 2a, 2b, 2c, or 2d” were designed and synthesized. The compounds of the general formulas (1, 2a, 2b, 2c, or 2d) “Structure 1, 2a, 2b, 2c, or 2d” indicated above can be prepared from metal salts, organic base salts, or immobilized base salts of NSAIAs with suitable halide compounds. The positively charged amino groups in the pro-drugs in this invention largely increase the solubility of the drugs in water and will bond to the negative charge on the phosphate head group of membrane. Thus, the local concentration of the outside of the membrane or skin will be very high and will facilitate the passage of these pro-drugs from a region of high concentration to a region of low concentration. This bonding will disturb the membrane a little bit and may make some room for the lipophilic portion of the pro-drug.
    Type: Application
    Filed: June 4, 2007
    Publication date: July 8, 2010
    Inventors: Chongxi Yu, Lina Xu
  • Publication number: 20100069336
    Abstract: The invention provides compositions of novel high penetration compositions (HPC) or high penetration prodrugs (HPP) of mustards and mustard-related compounds, which are capable of crossing biological barriers with high penetration efficiency. The HPPs are capable of being converted to parent active drugs or drug metabolites after crossing the biological barrier and thus can render treatments for the conditions that the parent drugs or metabolites can. Additionally, the HPPs are capable of reaching areas that parent drugs may not be able to access or to render a sufficient concentration at the target areas and therefore render novel treatments. The HPPs can be administered to a subject through various administration routes, e.g., locally delivered to an action site of a condition with a high concentration or systematically administered to a biological subject and enter the general circulation with a faster rate.
    Type: Application
    Filed: April 3, 2009
    Publication date: March 18, 2010
    Inventors: Chongxi Yu, Lina Xu
  • Publication number: 20090252685
    Abstract: The invention provides compositions of novel high penetration compositions (HPC) or high penetration prodrugs (HPP) of prostaglandins or prostaglandin analogs which are capable of crossing biological barriers with high penetration efficiency. The HPPs are capable of being converted to parent prostaglandins or prostaglandin analogs after crossing the biological barrier and thus can render treatments for the conditions that the parent prostaglandins or prostaglandin analogs can. Additionally, the HPPs are capable of reaching areas that parent prostaglandins or prostaglandin analogs may not be able to access or to render a sufficient concentration at the target areas and therefore render novel treatments. The HPPs can be administered to a subject through various administration routes, e.g., locally delivered to an action site of a condition with a high concentration or systematically administered to a biological subject and enter the general circulation with a faster rate.
    Type: Application
    Filed: April 2, 2009
    Publication date: October 8, 2009
    Inventors: Chongxi Yu, Lina Xu
  • Publication number: 20090238763
    Abstract: The present invention relates to compositions and uses of novel high penetration compositions or high penetration prodrugs (HPP), in particular HPPs for non-steroidal anti-inflammatory agents (NSAIAs), which are capable of crossing biological barriers with high penetration efficiency. The HPPs herein are capable of being converted to parent active drugs or drug metabolites after crossing the biological barrier and thus can render treatments for the conditions that the parent drugs or metabolites can. Additionally, due to the ability of penetrating biological barriers, the HPPs herein are capable of reaching areas that parent drugs may not be able to access or to render a sufficient concentration at the target areas and therefore render novel treatments. The HPPs herein can be administered to a subject through various administration routes.
    Type: Application
    Filed: January 9, 2009
    Publication date: September 24, 2009
    Inventors: Chongxi Yu, Lina Xu
  • Publication number: 20090221703
    Abstract: The present invention relates to compositions and uses of novel high penetration compositions or high penetration prodrugs (HPP), in particular HPPs for 4-aminophenol derivatives, which are capable of crossing biological barriers with high penetration efficiency. The HPPs herein are capable of being converted to parent active drugs or drug metabolites after crossing the biological barrier and thus can render treatments for the conditions that the parent drugs or metabolites can. Additionally, due to the ability of penetrating biological barriers, the HPPs herein are capable of reaching areas that parent drugs may not be able to access or to render a sufficient concentration at the target areas and therefore render novel treatments. The HPPs herein can be administered to a subject through various administration routes.
    Type: Application
    Filed: March 3, 2009
    Publication date: September 3, 2009
    Inventors: Chongxi Yu, Lina Xu