Priority Date: 22.07.04 (US 20040896387)

Manufacturing method of a hydrogen diffusion delay barrier for fiber optic cables used in hostile environments

  • Application ID: EP14179473


Employment test 51 - 200 employees
Company dna hoffmann eitle
operating since 1892
Headquarter in Munich and 6 offices
active in Legal Services and IP Portfolio Processing


This EP application has the IPC combination G02 (OPTICS) and H01 (BASIC ELECTRIC ELEMENTS). Hoffmann Eitle PartmbB is specialized in the combination G02 and H01. We found, that TransMIT GmbH, Riechelmann & Carlsohn GbR, Viering, Jentschura & Partner mbB Patent- und Rechtsanwälte, Müller Hoffmann & Partner, Engel Patentanwaltskanzlei and 52 others are specialized in all of these IPC classes as well. For a similar patent, they might be a good choice.


  • 22.07.2004 - Priority Date (US 20040896387)
  • 31.12.2014 - Publication A1 (EP2818904)

IPC Classification