Patents Assigned to DELTA S.R.L.
  • Stylographic pen with precious material
    Patent number: 9421813
    Abstract: Stylographic pen provided with a pen nib including an aeration hole, a slit, a tip and a precious material plate made of any precious material, wherein the plate made of precious material is placed in proximity to the aeration hole and in proximity to the ink present in the pen nib.
    Type: Grant
    Filed: March 22, 2013
    Date of Patent: August 23, 2016
    Assignee: DELTA S.R.L.
    Inventors: Gennaro Marino, Ciro Matrone