Patents by Inventor Fen Luo

Fen Luo 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).

  • Patent number: 11135206
    Abstract: The present invention provides novel pyrazolo[4,3-c]quinoline derivatives exhibiting specifically inhibition activity to microbiota ?-glucuronidase, whereby providing potent activities to prevent chemotherapy-induced diarrhea (CID) of cancers. Therefore, the compounds of the present invention can be used as (1) chemotherapy-adjuvant to prevent chemotherapy-induced diarrhea (CID) and enhance chemotherapeutic efficiency of cancers; (2) health-food supplement to prevent the carcinogens induced colon carcinoma.
    Type: Grant
    Filed: May 26, 2016
    Date of Patent: October 5, 2021
    Assignee: KAOHSIUNG MEDICAL UNIVERSITY
    Inventors: Yeh-Long Chen, Tian-Lu Cheng, Cherng-Chyi Tzeng, Chih-Hua Tseng, Ta-Chun Cheng, Kai-Wen Cheng, Wei-Fen Luo
  • Publication number: 20210283213
    Abstract: The present invention provides an anhydrous crystal of polymyxin B1 sulfate, polymyxin B2 sulfate or a mixture thereof and a preparation method thereof. The preparation method comprises using an organic solvent to precipitate a solid from a saturated solution of polymyxin B1 sulfate, polymyxin B2 sulfate or a mixture thereof, drying it under vacuum to obtain an anhydrous crystal of polymyxin B1 sulfate, polymyxin B2 sulfate or a mixture thereof.
    Type: Application
    Filed: August 19, 2016
    Publication date: September 16, 2021
    Applicant: Hubei Ruihaoanke Pharmaceutical Technology Development Co., Ltd.
    Inventors: Xiaobing Li, Fen Luo, Zengxia Wang, Yanwei Xu, Changhong Li
  • Patent number: 11052072
    Abstract: The present invention provides novel pyrazolo[4,3-c]quinoline derivatives exhibiting specifically inhibition activity to microbiota ?-glucuronidase, whereby providing potent activities to prevent chemotherapy-induced diarrhea (CID) of cancers. Therefore, the compounds of the present invention can be used as (1) chemotherapy-adjuvant to prevent chemotherapy-induced diarrhea (CID) and enhance chemotherapeutic efficiency of cancers; (2) health-food supplement to prevent the carcinogens induced colon carcinoma.
    Type: Grant
    Filed: December 12, 2019
    Date of Patent: July 6, 2021
    Assignee: KAOHSIUNG MEDICAL UNIVERSITY
    Inventors: Yeh-Long Chen, Tian-Lu Cheng, Cherng-Chyi Tzeng, Chih-Hua Tseng, Ta-Chun Cheng, Kai-Wen Cheng, Wei-Fen Luo
  • Publication number: 20200113878
    Abstract: The present invention provides novel pyrazolo[4,3-c]quinoline derivatives exhibiting specifically inhibition activity to microbiota ?-glucuronidase, whereby providing potent activities to prevent chemotherapy-induced diarrhea (CID) of cancers. Therefore, the compounds of the present invention can be used as (1) chemotherapy-adjuvant to prevent chemotherapy-induced diarrhea (CID) and enhance chemotherapeutic efficiency of cancers; (2) health-food supplement to prevent the carcinogens induced colon carcinoma.
    Type: Application
    Filed: December 12, 2019
    Publication date: April 16, 2020
    Inventors: Yeh-Long Chen, Tian-Lu Cheng, Cherng-Chyi Tzeng, Chih-Hua Tseng, Ta-Chun Cheng, Kai-Wen Cheng, Wei-Fen Luo
  • Publication number: 20190256557
    Abstract: The present invention provides a polymyxin B sulfate crystal and a preparation method thereof. Said method comprises the following steps of: adsorbing a polymyxin B fermentation liquid with a resin, and adding sulfuric acid or acidic ethanol for desorbing; concentrating to obtain a saturated solution of polymyxin B sulfate; and using an organic solvent to precipitate a crystal from the saturated solution, filtering and drying to obtain the polymyxin B sulfate crystal.
    Type: Application
    Filed: August 19, 2016
    Publication date: August 22, 2019
    Applicant: Hubei Ruihaoanke Pharmaceutical Technology Development Co., Ltd.
    Inventors: Zengxia Wang, Xiaobing Li, Fen Luo, Changhong Li, Yanwei Xu, Long Chen
  • Publication number: 20180214426
    Abstract: The present invention provides novel pyrazolo[4,3-c]quinoline derivatives exhibiting specifically inhibition activity to microbiota ?-glucuronidase, whereby providing potent activities to prevent chemotherapy-induced diarrhea (CID) of cancers. Therefore, the compounds of the present invention can be used as (1) chemotherapy-adjuvant to prevent chemotherapy-induced diarrhea (CID) and enhance chemotherapeutic efficiency of cancers; (2) health-food supplement to prevent the carcinogens induced colon carcinoma.
    Type: Application
    Filed: May 26, 2016
    Publication date: August 2, 2018
    Inventors: Yeh-Long Chen, Tian-Lu Cheng, Cherng-Chyi Tzeng, Chih-Hua Tseng, Ta-Chun Cheng, Kai-Wen Cheng, Wei-Fen Luo
  • Publication number: 20100243413
    Abstract: A simulated eye is provided. The tilt switch comprises an electrically insulating housing with a chamber formed therein. The chamber is defined by a bottom surface and a surrounding surface. The tilt switch also includes a plurality of contact terminals, each of which comprises an inner terminal portion and an outer terminal portion. Each inner terminal portion protrudes out of the surrounding surface of the chamber and extends in a direction substantially parallel to the bottom surface. The tilt switch further includes an electrically conductive moving member placed in a space defined by the cap, the bottom surface, and the plurality of contact terminals. The electrically conductive moving member is capable of simultaneously contacting with at most two of the plurality of contact terminals.
    Type: Application
    Filed: August 25, 2009
    Publication date: September 30, 2010
    Applicants: HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD., HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Ming-Cheng Chu, Guo-Lin Yang, Fen Luo, Cheng-Hao Chou, Te-Sheng Jan
  • Publication number: 20100072040
    Abstract: A simulated eye is provided. The tilt switch comprises an electrically insulating housing with a chamber formed therein. The chamber is defined by a bottom surface and a surrounding surface. The tilt switch also includes a plurality of contact terminals, each of which comprises an inner terminal portion and an outer terminal portion. Each inner terminal portion protrudes out of the surrounding surface of the chamber and extends in a direction substantially parallel to the bottom surface. The tilt switch further includes an electrically conductive moving member placed in a space defined by the cap, the bottom surface, and the plurality of contact terminals. The electrically conductive moving member is capable of simultaneously contacting with at most two of the plurality of contact terminals.
    Type: Application
    Filed: August 25, 2009
    Publication date: March 25, 2010
    Applicants: HONG FU JIN PRECISION INDUSTRY(ShenZhen) CO., LTD., HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Ming-Cheng Chu, Guo-Lin Yang, Fen Luo, Te-Sheng Jan, Cheng-Hao Chou