Patents by Inventor Joan M. Beyer

Joan M. Beyer 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).

  • Self-illuminated attitude indicator and method for self-rescue from avalanche
    Patent number: 6546638
    Abstract: A self-illuminating attitude indicator for use by persons who have been buried in snow or the earth. The attitude indicator has a container partially filled with liquid and a manually operated light to illuminate the container. The liquid may be removed from the container and distributed on the snow to make the location more visible to rescuers.
    Type: Grant
    Filed: August 1, 2001
    Date of Patent: April 15, 2003
    Inventor: Joan M. Beyer
  • Self-illuminated attitude indicator and method for self-rescue from avalanche
    Publication number: 20020017029
    Abstract: A self-illuminating attitude indicator for use by persons who have been buried in snow or the earth. The attitude indicator has a container partially filled with liquid and a manually operated light to illuminate the container. The liquid may be removed from the container and distributed on the snow to make the location more visible to rescuers.
    Type: Application
    Filed: August 1, 2001
    Publication date: February 14, 2002
    Inventor: Joan M. Beyer