Fire-retardant sleeve, use of this fire-retardant sleeve, method for applying a fire-retardant sleeve and ceiling feed-through
- Application ID: EP12181471
- Status: █ GRANT OF PATENT INTENDED
This EP application has the IPC class E04 (BUILDING) and F16 (ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL). HILTI AG is specialized in the combination E04 and F16. We found, that Lippert Stachow & Partner, Dr. Weihrauch & Haussingen GbR, Destek Patent Inc, Rentsch Partner AG, Riederer Hasler & Partner Patentanwälte AG and 105 others are specialized in all of these IPC classes as well. For a similar patent, they might be a good choice.