Patents by Inventor Haitao Chi

Haitao Chi 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).

  • Disposable integrated polymeric vacuum filtration funnel
    Patent number: 9623349
    Abstract: This invention discloses a disposable integrated polymeric vacuum filtration funnel. The integrated polymeric vacuum filtration funnel comprises a filtration funnel body having a filter frit disposed inside at the bottom, an outlet stem connected with an outlet at the outer bottom of the filtration funnel body; the outlet stem is integrated with the filtration funnel body; the filter frit is sealed to the inner bottom and the inner side surface of the filtration funnel body; the integrated polymeric vacuum filtration funnel comprises a sealing joint disposed underneath the outer bottom of the filtration funnel body, the sealing joint having a side-arm for vacuum connection and a standard adaptor to connect the receiving receptacle; the outlet stem protrudes from the standard adaptor; the filter frit, filtration funnel body, and sealing joint are integrated as one device.
    Type: Grant
    Filed: March 21, 2014
    Date of Patent: April 18, 2017
    Inventors: Haitao Chi, Haifeng Zhu, Yawu Thomas Chi
  • DISPOSABLE INTEGRATED POLYMERIC VACUUM FILTRATION FUNNEL
    Publication number: 20140291234
    Abstract: This invention discloses a disposable integrated polymeric vacuum filtration funnel. The integrated polymeric vacuum filtration funnel comprises a filtration funnel body having a filter frit disposed inside at the bottom, an outlet stem connected with an outlet at the outer bottom of the filtration funnel body; the outlet stem is integrated with the filtration funnel body; the filter frit is sealed to the inner bottom and the inner side surface of the filtration funnel body; the integrated polymeric vacuum filtration funnel comprises a sealing joint disposed underneath the outer bottom of the filtration funnel body, the sealing joint having a side-arm for vacuum connection and a standard adaptor to connect the receiving receptacle; the outlet stem protrudes from the standard adaptor; the filter frit, filtration funnel body, and sealing joint are integrated as one device.
    Type: Application
    Filed: March 21, 2014
    Publication date: October 2, 2014
    Inventors: Haitao Chi, Haifeng Zhu, Yawu Thomas Chi