Patents by Inventor Cristina CHANG

Cristina CHANG 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).

  • Microbubble creating method using a forming machine
    Patent number: 10279523
    Abstract: A microbubble creating method using a forming machine for creating microbubbles by: installed a microbubble generating member in a mold, feed screw or barrel for enabling a perforated tip of the microbubble generating member to be surrounded by the applied fluid polymer so that when a high pressure high temperature gas is delivered through the perforated tip of the microbubble generating member, microbubbles are created with well mixed with the fluid polymer, and the expected foamed polymer product is thus obtained after cooling.
    Type: Grant
    Filed: October 1, 2015
    Date of Patent: May 7, 2019
    Assignee: EVERFOCUS INTERNATIONAL CO., LTD.
    Inventors: Wei-Chih Liao, Cristina Chang
  • Microbubble creating method using a forming machine
    Patent number: 10239243
    Abstract: A microbubble creating method using a forming machine for creating microbubbles by: installed a microbubble generating member in a mold, feed screw or barrel for enabling a perforated tip of the microbubble generating member to be surrounded by the applied fluid polymer so that when a high pressure high temperature gas is delivered through the perforated tip of the microbubble generating member, microbubbles are created with well mixed with the fluid polymer, and the expected foamed polymer product is thus obtained after cooling.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: March 26, 2019
    Assignee: Everfocus International Co., Ltd.
    Inventors: Wei-Chih Liao, Cristina Chang
  • Microbubble creating method using a forming machine
    Patent number: 10239244
    Abstract: A microbubble creating method using a forming machine for creating microbubbles by: installed a microbubble generating member in a mold, feed screw or barrel for enabling a perforated tip of the microbubble generating member to be surrounded by the applied fluid polymer so that when a high pressure high temperature gas is delivered through the perforated tip of the microbubble generating member, microbubbles are created with well mixed with the fluid polymer, and the expected foamed polymer product is thus obtained after cooling.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: March 26, 2019
    Assignee: Everfocus International Co., Ltd.
    Inventors: Wei-Chih Liao, Cristina Chang
  • MICROBUBBLE CREATING METHOD USING A FORMING MACHINE
    Publication number: 20180281248
    Abstract: A microbubble creating method using a forming machine for creating microbubbles by: installed a microbubble generating member in a mold, feed screw or barrel for enabling a perforated tip of the microbubble generating member to be surrounded by the applied fluid polymer so that when a high pressure high temperature gas is delivered through the perforated tip of the microbubble generating member, microbubbles are created with well mixed with the fluid polymer, and the expected foamed polymer product is thus obtained after cooling.
    Type: Application
    Filed: June 7, 2018
    Publication date: October 4, 2018
    Inventors: Wei-Chih LIAO, Cristina CHANG
  • MICROBUBBLE CREATING METHOD USING A FORMING MACHINE
    Publication number: 20180281249
    Abstract: A microbubble creating method using a forming machine for creating microbubbles by: installed a microbubble generating member in a mold, feed screw or barrel for enabling a perforated tip of the microbubble generating member to be surrounded by the applied fluid polymer so that when a high pressure high temperature gas is delivered through the perforated tip of the microbubble generating member, microbubbles are created with well mixed with the fluid polymer, and the expected foamed polymer product is thus obtained after cooling.
    Type: Application
    Filed: June 7, 2018
    Publication date: October 4, 2018
    Inventors: Wei-Chih LIAO, Cristina CHANG