Patents by Inventor Dan Tseng

Dan Tseng 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).

  • Electrostatic air purifier with a laterally removable collection grid module
    Publication number: 20060278074
    Abstract: An air purification system includes an electrostatic collection grid module inside the housing of the system to remove particulate matter from the air flowing through the housing. The collection grid module is removable from a side of the housing. The collection grid module is equipped with a handle and a release mechanism. A user may draw out the collection grid module from the housing by pulling the handle while activating the release mechanism. Thus, the collection grid module may be cleaned with ease.
    Type: Application
    Filed: June 9, 2005
    Publication date: December 14, 2006
    Inventors: Dan Tseng, David Kaye, Ling Ling, Qi Zhiqiang, Wang Bosheng, Hu Lu, Kang Cong, Chung Chang, Ma Tao
  • Mounting bracket
    Patent number: D785442
    Type: Grant
    Filed: February 24, 2016
    Date of Patent: May 2, 2017
    Assignee: Tonusa, LLC
    Inventors: Dan Tseng, Rob Chao, Yiu Ming Ng
  • Shower assembly
    Patent number: D787016
    Type: Grant
    Filed: February 24, 2016
    Date of Patent: May 16, 2017
    Assignee: Tonusa, LLC
    Inventors: Dan Tseng, Rob Chao
  • Shower assembly
    Patent number: D787017
    Type: Grant
    Filed: February 24, 2016
    Date of Patent: May 16, 2017
    Assignee: Tonusa, LLC
    Inventors: Dan Tseng, Rob Chao
  • Shower assembly
    Patent number: D787018
    Type: Grant
    Filed: February 24, 2016
    Date of Patent: May 16, 2017
    Assignee: Tonusa, LLC
    Inventors: Dan Tseng, Rob Chao
  • Shower assembly
    Patent number: D787635
    Type: Grant
    Filed: February 24, 2016
    Date of Patent: May 23, 2017
    Assignee: Tonusa, LLC
    Inventors: Dan Tseng, Rob Chao
  • Rolling cart
    Patent number: D875342
    Type: Grant
    Filed: November 13, 2017
    Date of Patent: February 11, 2020
    Assignee: TONUSA, LLC
    Inventors: Dan Tseng, James Ng, Rob Chao