Patents by Inventor Max Heindl

Max Heindl 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).

  • Lead for writing, drawing and painting utensils
    Publication number: 20060194049
    Abstract: A lead for writing, drawing and painting utensils has a colorant lead core and at least one lead coat extending in the direction of the longitudinal axis. The at least one lead coat envelopes the lead core as seen in cross section of the lead and the lead coat and lead core are immovably mounted relative to each other. The at least one lead coat has a higher bending strength than the lead core.
    Type: Application
    Filed: January 26, 2006
    Publication date: August 31, 2006
    Inventors: Andreas Thies, Christa Lehrer, Jurgen Reiner, Christine Delapierre, Robert Nein, Franz Ochsenkuhn, Max Heindl