Patents by Inventor Alexander Pletschacher

Alexander Pletschacher 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).

  • Oxygen enrichment device for the combustion air of internal combustion engines
    Patent number: 6363923
    Abstract: An apparatus for enriching oxygen in the combustion air of internal-combustion engines has a gas centrifuge (1) which is driven by an exhaust gas turbine (2) in the exhaust pipe (4)
    Type: Grant
    Filed: July 11, 2000
    Date of Patent: April 2, 2002
    Inventor: Alexander Pletschacher