Patents by Inventor Glenn E. Weagle

Glenn E. Weagle 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).

  • Broad spectrum filter system including tungsten-based impregnant and being useful for filtering contaminants from air or other gases
    Patent number: 7309513
    Abstract: Filter systems that are effective against a broad range of contaminants including HCN, cyanogen chloride (CK), acid contaminants. and basic contaminants such as ammonia without the need (but with the option, if desired) for using molybdenum or chromium containing materials. The filtering systems of the present invention include a tungsten-based material and other impregnants incorporated into a substrate such as filter media particles.
    Type: Grant
    Filed: April 14, 2005
    Date of Patent: December 18, 2007
    Assignee: 3M Innovative Properties Company
    Inventors: Larry A. Brey, Simon J. Smith, Glenn E. Weagle
  • Broad spectrum filter system including tungsten-based impregnant and being useful for filtering contaminants from air or other gases
    Patent number: 7004990
    Abstract: Filter systems that are effective against a broad range of contaminants including HCN, cyanogen chloride (CK), acid contaminants and basic contaminants such as ammonia without the need (but with the option, if desired) for using molybdenum or chromium containing materials. The filtering systems of the present invention include a tungsten-based material and other impregnants incorporated into a substrate such as filter media particles.
    Type: Grant
    Filed: June 26, 2003
    Date of Patent: February 28, 2006
    Assignee: 3M Innovative Properties Company
    Inventors: Larry A. Brey, Simon J. Smith, Glenn E. Weagle
  • Broad spectrum filter system including tungsten-based impregnant and being useful for filtering contaminants from air or other gases
    Publication number: 20040261385
    Abstract: Filter systems that are effective against a broad range of contaminants including HCN, cyanogen chloride (CK), acid contaminants. and basic contaminants such as ammonia without the need (but with the option, if desired) for using molybdenum or chromium containing materials. The filtering systems of the present invention include a tungsten-based material and other impregnants incorporated into a substrate such as filter media particles.
    Type: Application
    Filed: June 26, 2003
    Publication date: December 30, 2004
    Inventors: Larry A. Brey, Simon J. Smith, Glenn E. Weagle