Peine
Germany
7
2024-01-04
The entities that hold a legal rights for patent applications filed by inventor Helmsen Frank:
Frank Helmsen from Peine, DE has applied for patents for these inventions. The list has both pending applications and granted patents:
FLAME ARRESTER
#2 | 2020-09-24FLAME ARRESTER
#3 | 2019-12-12Tank valve and tank with such a valve
#4 | 2019-12-12Method for extinguishing a flame front and extinguishing device
#5 | 2013-10-24FLAME ARRESTER
#6 | 2013-08-22Control valve
#7 | 2010-12-09Flame arrester arrangement
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