Patents by Inventor Nils G. Marnfeldt

Nils G. Marnfeldt 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).

  • Training device for inhaler
    Patent number: D377686
    Type: Grant
    Filed: September 26, 1994
    Date of Patent: January 28, 1997
    Assignee: Astra Aktiebolag
    Inventors: Johan Waldeck, Nils G. Marnfeldt