Patents by Inventor Yi-Hui Christina Ma

Yi-Hui Christina Ma 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).

  • Method of determining inventory levels
    Publication number: 20030061126
    Abstract: Optimum inventory levels are determined for parts in a network of neighboring part facilities serving a plurality of customers. A part procurement time performance measure is met or exceeded while minimizing overall inventory cost including holding, handling, and transportation costs. Alternatively an upper bound on inventory cost is met while maximizing a part procurement time measure.
    Type: Application
    Filed: June 12, 2001
    Publication date: March 27, 2003
    Applicant: International Business Machines Corporation
    Inventors: Yesim Erke, Yi-Hui Christina Ma, Mark C. Booth