Patents by Inventor Gary D. Mahon

Gary D. Mahon 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).

  • Breath actuated aerosol dispensers
    Patent number: 7296567
    Abstract: A breath actuated metered dose inhaler device for use with an aerosol valve having a transient metering chamber.
    Type: Grant
    Filed: September 15, 2003
    Date of Patent: November 20, 2007
    Assignee: 3M Innovative Properties Company
    Inventors: Gary D. Mahon, Eric A. Baum, Andrew M. Bryant
  • Metering valve for a metered dose inhaler providing consistent delivery
    Patent number: 7234460
    Abstract: The present invention relates to a novel design for a metering valve that provides improved consistency of formulation delivery. Generally, the metering valve includes (a) a valve stem that generally defines a longitudinal axis and includes a body portion having a metering surface, wherein the longitudinal axis and a plane tangential to at least a portion of the metering surface define an angle from about 2° to about 90°; and (b) a valve body having an internal chamber defined at least in part by the body wall and includes a metering portion configured to substantially conform to the metering surface of the valve stem.
    Type: Grant
    Filed: September 4, 2003
    Date of Patent: June 26, 2007
    Assignee: 3M Innovative Properties Company
    Inventors: David J. Greenleaf, Peter D. Hodson, Graham R. Purkins, Gary D. Mahon, Heinz G. Klein
  • Valve stem for use in a metering valve of a metered dose inhaler
    Patent number: 6863195
    Abstract: Valve stems for use in an aerosol metering valve are described herein. The valve stems include structures designed to limit the likelihood and extent to which a gasket can intrude into an opening in the valve stem. The valve stems described herein also limit the likelihood and extent of damage to the gasket caused by repeated use of the metering valve.
    Type: Grant
    Filed: December 30, 2002
    Date of Patent: March 8, 2005
    Assignee: 3M Innovative Properties Company
    Inventors: Andrew M. Bryant, Gustavo H. Castro, David J. Greenleaf, Peter D. Hodson, Gary D. Mahon
  • Metering valve for a metered dose inhaler providing consistent delivery
    Publication number: 20040139965
    Abstract: The present invention relates to a novel design for a metering valve that provides improved consistency of formulation delivery. Generally, the metering valve includes (a) a valve stem that generally defines a longitudinal axis and includes a body portion having a metering surface, wherein the longitudinal axis and a plane tangential to at least a portion of the metering surface define an angle from about 2° to about 90°; and (b) a valve body having an internal chamber defined at least in part by the body wall and includes a metering portion configured to substantially conform to the metering surface of the valve stem.
    Type: Application
    Filed: September 4, 2003
    Publication date: July 22, 2004
    Applicant: 3M Innovative Properties Company
    Inventors: David J. Greenleaf, Peter D. Hodson, Graham R. Purkins, Gary D. Mahon, Heinz G. Klein
  • Valve stem for use in a metering valve of a metered dose inhaler
    Publication number: 20030127464
    Abstract: Valve stems for use in an aerosol metering valve are described herein. The valve stems include structures designed to limit the likelihood and extent to which a gasket can intrude into an opening in the valve stem. The valve stems described herein also limit the likelihood and extent of damage to the gasket caused by repeated use of the metering valve.
    Type: Application
    Filed: December 30, 2002
    Publication date: July 10, 2003
    Inventors: Andrew M. Bryant, Gustavo H. Castro, David J. Greenleaf, Peter D. Hodson, Gary D. Mahon