Patents by Inventor Matthew David Nelson

Matthew David Nelson 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).

  • CONTROL SYSTEM FOR ELECTRIC BICYCLE
    Publication number: 20220194517
    Abstract: Disclosed is a method for controlling power supplied to an electric drive system of an electric bicycle. The method includes determining a pedal assist power level for the electric drive system, determining a first current to be applied to the electric drive system based on the pedal assist power level, detecting a user selected boost assist at a first input while the first current is being applied to the electric drive system, and determining a second current to be applied to the electric drive system based at least in part on both the user selected boost assist and a boost trigger, the boost trigger being received via a second input.
    Type: Application
    Filed: December 17, 2021
    Publication date: June 23, 2022
    Inventor: Matthew David Nelson
  • System for alleviating DNAPL contamination in groundwater
    Patent number: 6274048
    Abstract: Lenses of DNAPL suspended on clay strata in a sandy aquifer are treated with potassium permanganate. The solution is injected out into the aquifer from a port, and forms a horizontal disc of treatment liquid. The (heavy) liquid then gradually percolates down onto the DNAPL lens.
    Type: Grant
    Filed: March 22, 2000
    Date of Patent: August 14, 2001
    Assignee: University of Waterloo
    Inventors: Beth Louise Parker, Matthew David Nelson, John Anthony Cherry