Patents by Inventor Steven Mathews

Steven Mathews 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).

  • Warning device for prevention of deep vein thrombosis
    Publication number: 20050228317
    Abstract: A device for monitoring a length of time a person has been immobile is provided comprising a power supply unit, control unit, pressure sensor, and warning unit. The warning unit is triggered by the control unit to alert a person that he/she has been immobile for a prolonged period of time.
    Type: Application
    Filed: April 1, 2004
    Publication date: October 13, 2005
    Inventor: Steven Mathews
  • Simulative armored vehicle novelty hat
    Patent number: D806992
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: January 9, 2018
    Inventor: Steven Mathews