Patents by Inventor Matthias Anthonie Johannes Akkerman

Matthias Anthonie Johannes Akkerman 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 for producing color cards
    Patent number: 5728427
    Abstract: Wet color cards prepared with water-based emulsion paints applied in layers of at least 75 g/m.sup.2 are dried using infra-red dryers irradiating the uncoated side of the cardboard or paper cards.
    Type: Grant
    Filed: December 14, 1995
    Date of Patent: March 17, 1998
    Assignee: Fina Research, S.A.
    Inventors: Matthias Anthonie Johannes Akkerman, Gerhardus Johannis Mulder