Patents by Inventor Chad Michael Cunningham

Chad Michael Cunningham 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).

  • Method and operation of an engine
    Publication number: 20080041335
    Abstract: An engine is disclosed which may operate in a first operating state wherein a spark ignited fuel is ignited in a combustion chamber with an igniter and a second operating state wherein a compression ignited fuel is ignited in a combustion chamber with an igniter. A compression ratio in the combustion chamber being up to about eight to one. The engine may be a four-stroke engine. The engine may include a piston having a top portion with a recessed central portion.
    Type: Application
    Filed: June 2, 2006
    Publication date: February 21, 2008
    Inventors: James Harold Buchwitz, Chad Michael Cunningham, Nathan Dale Dahl, Ryan Wade Sorenson, Dean Jonathan Hedlund, Christopher Richard Benning