Patents by Inventor Marshall Hau

Marshall Hau 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).

  • Exhaust safety system for an engine
    Patent number: 11624333
    Abstract: Engine systems which are safer and have reduced risk of fire are desirable in a wide range of equipment markets. The present engine systems utilize sensors and control systems which reduce the probability of fire or spark exiting the exhaust system. The sensors may monitor a wide range of conditions within the exhaust system to alter the operating parameters of the engine to prevent ignition of objects adjacent the engine system during use. By altering operation of the engine, conditions such as exhaust temperature or unburned fuel can be controlled to minimize risk of undesired ignition.
    Type: Grant
    Filed: April 14, 2022
    Date of Patent: April 11, 2023
    Inventors: Martin Louis Radue, Marshall Hau, David Hasler, Donald Castle, Michael E. Smies
  • EXHAUST SAFETY SYSTEM FOR AN ENGINE
    Publication number: 20220333545
    Abstract: Engine systems which are safer and have reduced risk of fire are desirable in a wide range of equipment markets. The present engine systems utilize sensors and control systems which reduce the probability of fire or spark exiting the exhaust system. The sensors may monitor a wide range of conditions within the exhaust system to alter the operating parameters of the engine to prevent ignition of objects adjacent the engine system during use. By altering operation of the engine, conditions such as exhaust temperature or unburned fuel can be controlled to minimize risk of undesired ignition.
    Type: Application
    Filed: April 14, 2022
    Publication date: October 20, 2022
    Inventors: Martin Louis Radue, Marshall Hau, David Hasler, Donald Castle, Michael E. Smies