Langenzenn
Germany
4
2025-09-11
The entities that hold a legal rights for patent applications filed by inventor Kellermann Helmut:
Helmut Kellermann from Langenzenn, DE has applied for patents for these inventions. The list has both pending applications and granted patents:
LIQUID PUMP
#2 | 2017-11-30Electric centrifugal pump with containment shell grooves
#3 | 2012-02-23Electronically commutated DC motor for a liquid pump
#4 | 2010-05-13Electric drive with a circuit board
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