Patents by Inventor Wen-Ching Say

Wen-Ching Say 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 for controlling the working time of a gypsum composition in bone restoration operation and the gypsum composition
    Publication number: 20030129256
    Abstract: A gypsum composition is prepared to prolong the working time and shorten the setting time of the gypsum composition in a bone restoration operation. The gypsum composition is formed of a half-hydrate gypsum (CaSO4.0.5H2O), and an aqueous solution containing water, a polyol, and at least one solidification promoter selected from a polysaccharide, a polyethylene alcohol or mixtures thereof. The aqueous solution contains the water and the polyol in a volume ratio ranging between 25:1 and 2:1. The aqueous solution further contains 0.2% to 2.0% by weight of the solidification promoter.
    Type: Application
    Filed: July 17, 2002
    Publication date: July 10, 2003
    Applicant: Central Medical Technologies Inc.
    Inventors: Han-Chao Chang, Chih-I Lin, Wen-Ching Say, Horng Wei Pan, Shengfu Lin
  • Method of controlling the working time of a gypsum composition in the bone treatment
    Patent number: 6524622
    Abstract: A method is designed to control the working time, setting time and the semi-solidification time of a gypsum composition in a bone restoration operation. The method involves a preparation of the gypsum composition by mixing an orthopedic gypsum and an aqueous solution in a weight ratio to form a semisolid substance which is to be injected into a patient under treatment. The aqueous solution contains serum, blood plasma, or whole blood, which is preferably taken from the patient under treatment.
    Type: Grant
    Filed: July 17, 2002
    Date of Patent: February 25, 2003
    Assignee: Central Medical Technologies Inc.
    Inventors: Shengfu Lin, Chih-I Lin, Horng Wei Pan, Shao-Wen Wu, Wen-Ching Say
  • Orthopedic implant having a porous surface and method of making same
    Patent number: 6485521
    Abstract: An orthopedic implant has a porous surface with a plurality of pores, some of which are provided with a pores-within-a-pore structure. The pores-within-a-pore structure has a pore opening ranging in size between 10 and 800 microns. The present invention also discloses a process for making an orthopedic implant which is provided in the surface thereof with a pores-within-a-pore porous structure.
    Type: Grant
    Filed: June 14, 2000
    Date of Patent: November 26, 2002
    Inventors: Wen-Ching Say, Chih-I Lin, Shengfu Lin
  • Orthopedic implant having a porous surface and method of making same
    Publication number: 20020153348
    Abstract: An orthopedic implant has a porous surface with a plurality of pores, some of which are provided with a pores-within-a-pore structure. The pores-within-a-pore structure has a pore opening ranging in size between 10 and 800 microns. The present invention also discloses a process for making an orthopedic implant which is provided in the surface thereof with a pores-within-a-pore porous structure.
    Type: Application
    Filed: April 9, 2002
    Publication date: October 24, 2002
    Inventors: Wen-Ching Say, Chih-I Lin, Shengfu Lin