Patents by Inventor David W. Brownlee

David W. Brownlee 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).

  • Hyperbaric oxygen enrichment system for vehicles
    Patent number: 6380859
    Abstract: This invention provides oxygen-enriched air to the passenger compartment of wheeled vehicles under hyperbaric conditions to reduce drowsiness of drivers of wheeled vehicles so as to reduce the number of accidents caused by drowsy drivers. The invention also makes drivers and passengers in wheeled vehicles more alert and feel better by increasing the percentage of oxygen in the passenger compartments of wheeled vehicles to a beneficial and safe level.
    Type: Grant
    Filed: January 9, 2001
    Date of Patent: April 30, 2002
    Inventor: David W. Brownlee
  • Oxygen enrichment system for vehicles
    Patent number: 6191694
    Abstract: This invention provides oxygen-enriched air to the passenger compartment of wheeled vehicles to reduce drowsiness of drivers of wheeled vehicles so as to reduce the number of accidents caused by drowsy drivers. The invention also makes drivers and passengers in wheeled vehicles more alert and feel better by increasing the percentage of oxygen in the passenger compartments of wheeled vehicles to a beneficial and safe level.
    Type: Grant
    Filed: January 27, 2000
    Date of Patent: February 20, 2001
    Inventor: David W. Brownlee
  • Oxygen enrichment system for wheeled vehicles cross-reference to related applications
    Patent number: 6034606
    Abstract: This invention provides supplemental oxygen to the passenger compartment of wheeled vehicles to reduce drowsiness of drivers of wheeled vehicles so as to reduce the number of accidents caused by drowsy drivers. The invention also makes drivers and passengers in wheeled vehicles more alert and feel better by increasing the percentage of oxygen in the passenger compartments of wheeled vehicles to a beneficial and safe level.
    Type: Grant
    Filed: April 28, 1999
    Date of Patent: March 7, 2000
    Inventor: David W. Brownlee
  • Oxygen supply system for wheeled vehicles
    Patent number: 5910773
    Abstract: This invention provides supplemental oxygen to the passenger compartment of wheeled vehicles to reduce drowsiness of drivers of wheeled vehicles so as to reduce the number of accidents caused by drowsy drivers. The invention also makes drivers and passengers in wheeled vehicles more alert and feel better by increasing the percentage of oxygen in the passenger compartments of wheeled vehicles to a beneficial and safe level.
    Type: Grant
    Filed: January 18, 1998
    Date of Patent: June 8, 1999
    Inventor: David W. Brownlee