Patents by Inventor Xiaoyun Yu

Xiaoyun Yu 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: 20250220076
    Abstract: A method for processing a domain name resolution request is provided. The method includes: obtaining first request information of a first domain name resolution request sent by a target client, wherein the first request information comprises a domain name to be resolved carried in the first domain name resolution request, and client information of the target client; obtaining a first information set from a second server, in response to determining that first target node information corresponding to the first request information is not stored in the first server based on the domain name to be resolved and the client information, wherein the first information set is a collection of first candidate node information corresponding to the first request information; taking at least one first candidate node information in the first information set as the first target node information, and sending the first target node information to the target client.
    Type: Application
    Filed: March 15, 2023
    Publication date: July 3, 2025
    Inventors: Xiaoyun YU, Yongkang XU
  • Publication number: 20140017798
    Abstract: An improved analytical method for analysis of dianhydrogalactitol preparations provides a method for determining the purity of dianhydrogalactitol and detecting impurities in preparations of dianhydrogalactitol, as well as identifying any such impurities. The method employs high performance liquid chromatography (HPLC), in particular, HPLC with evaporative light scattering detection (ELSD); the HPLC can be followed by tandem mass spectroscopy. The method can further comprise the step of performing preparative HPLC collection of at least one specific substance peak present in a preparation of dianhydrogalactitol.
    Type: Application
    Filed: July 2, 2013
    Publication date: January 16, 2014
    Applicant: Del Mar Pharmaceuticals
    Inventor: Xiaoyun Yu