Patents by Inventor Hongmao Tang

Hongmao Tang 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).

  • Multigas passive sampler
    Patent number: 7980147
    Abstract: A novel multi-gas passive sampler is described, whereby different collection media are packed into one passive sampler to collect a variety of air pollutants (or groups of air pollutants) at the same time. By comparison with known commercially available passive samplers—in which only a single collection medium is used to collect a single air pollutant of or group of air pollutants—the MGPS is more cost effective, convenient to use and more environment-friendly.
    Type: Grant
    Filed: June 19, 2009
    Date of Patent: July 19, 2011
    Inventor: Hongmao Tang
  • MULTIGAS PASSIVE SAMPLER
    Publication number: 20090301229
    Abstract: A novel multi-gas passive sampler is described, whereby different collection media are packed into one passive sampler to collect a variety of air pollutants (or groups of air pollutants) at the same time. By comparison with known commercially available passive samplers—in which only a single collection medium is used to collect a single air pollutant of or group of air pollutants—the MGPS is more cost effective, convenient to use and more environment-friendly.
    Type: Application
    Filed: June 19, 2009
    Publication date: December 10, 2009
    Applicants: Dr. Hongmao Tang
    Inventor: Hongmao Tang
  • Multigas Passive Sampler
    Publication number: 20090007699
    Abstract: A novel multi-gas passive sampler is described, whereby different collection media are packed into one passive sampler to collect a variety of air pollutants (or groups of air pollutants) at the same time. By comparison with known commercially available passive samplers—in which only a single collection medium is used to collect a single air pollutant of or group of air pollutants—the MGPS is more cost effective, convenient to use and more environment-friendly.
    Type: Application
    Filed: June 20, 2008
    Publication date: January 8, 2009
    Inventor: Hongmao Tang