Patents by Inventor Anthony Wai Pang Chan

Anthony Wai Pang Chan 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).

  • Apparatus and method for controlling and prevention of venting of gaseous fuel to atmosphere from a vehicle tank at completion of a fuelling process
    Patent number: 6152191
    Abstract: In a gaseous fuelling system for motor vehicles, the residual gas in the fill lines is depressurized in a controlled manner to prevent gas "blow back" from the vehicle tank. Methods for blow back detection and prevention in direct and indirect fill procedures are provided.
    Type: Grant
    Filed: April 7, 1999
    Date of Patent: November 28, 2000
    Assignee: Fuelmaker Corporation
    Inventors: Anthony Wai Pang Chan, Ralph Rackham
  • Gas desiccation and contaminant disposal method and apparatus
    Patent number: 6117211
    Abstract: Water containing contaminants is removed from a gas or liquid stream and then treated to separate the water from the contaminants. The water is separated using a condenser and a semi-permeable membrane so that it is pure enough to be disposed-of in the local environment by evaporation. The accumulated contaminants may be removed separately for controlled disposal, or reintroduced into the original stream as an alternate method of disposal.
    Type: Grant
    Filed: September 11, 1998
    Date of Patent: September 12, 2000
    Assignee: Fuelmaker Corporation
    Inventors: Anthony Wai Pang Chan, Gregory M. Martinez, Ralph Rackham