Patents by Inventor Udo Feldhoff

Udo Feldhoff 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).

  • Device for absorbing a gas mixture consisting of laughing gas and anesthetic vapor
    Patent number: 5928411
    Abstract: A device for removing at least laughing gas and anesthetic vapor from a gas sample based on a molecular sieve shall be improved such that it possesses good adsorption properties for both gas components. A molecular sieve arrangement is provided, which is flown through from a gas inlet to a gas outlet and comprises a first molecular sieve area with a first pore size between about 0.3 nm and 0.5 nm and a second molecular sieve area with a second pore size between about 0.8 nm and 1 nm.
    Type: Grant
    Filed: July 21, 1997
    Date of Patent: July 27, 1999
    Assignee: Dragerwerk AG
    Inventors: Wolfgang Falb, Karl-Ludwig Gippert, Uwe Bausch, Dirk Stefan Reichert, Stefan Linke, Udo Feldhoff