Priority Date: 07.11.13 (AT 20130050741)

Return flow prevention

  • Application ID: EP14190044
  • Status: The patent has been granted


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This EP application has the IPC combination B29 (WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL) and F16 (ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL). We found, that Ilberg & Wei├čfloh, Patentanwaltskanzlei Rumrich, K2 IP Ltd, Frei Patentanwaltsb├╝ro, Rentsch Partner AG and 85 others are specialized in this combination either. For a similar patent, they might be a good choice.


  • 07.11.2013 - Priority Date (AT 20130050741)
  • 13.05.2015 - Publication A1 (EP2871393)
  • 04.10.2017 - Publication B1 (EP2871393)

IPC Classification