Patents by Inventor Wolfgang H. Mahl

Wolfgang H. Mahl 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).

  • Process, installation and device for enriching ventilation or air-conditioning air with aromatic substances
    Patent number: 5466399
    Abstract: In a process, installation and device for enriching ventilation or air-conditioning air with aromatic substances, the enrichment is homogenized in that a mixture of preferably water and aromatic substance is produced and stocked in a container (11) having a free evaporation surface for the mixture. The intake air current of the ventilation or air-conditioning air or part thereof is taken over the free evaporation area and then fed into the air-conditioning system.
    Type: Grant
    Filed: November 14, 1994
    Date of Patent: November 14, 1995
    Inventors: Diotima Von Kempski, Wolfgang H. Mahl