Patents by Inventor David CULSHAW

David CULSHAW 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).

  • DIRT SENSOR
    Publication number: 20190265147
    Abstract: A dirt sensor comprising a dirt collecting surface exposed to allow dirt from the environment to build-up on the dirt collecting surface, and a transducer located in relation to the dirt collecting surface and responsive to dirt thereon to provide an output of the sensor dependent on the amount of dirt built-up on the dirt collecting surface.
    Type: Application
    Filed: May 7, 2019
    Publication date: August 29, 2019
    Inventors: Matt GREEN, Savvas OTHON, David CULSHAW