1973 NTZ starts in Germany
NTZ Oel-Filter-Technik GmbH, West Germany
The letters NTZ represent the original founders, Neuber, Teschen and Zimmer.
Around 1970, Dr. Zimmer developed a bypass filter called the Zimmerfilter, which
was studied in a research program by TH Aken funded by the Federal Ministry
of Research and Technology. It soon revealed that the filter had exceptional
filtering properties. This prototype was modified several times during the investigation,
which ultimately resulted in a commercially applicable microfilter system.
The NTZ/NTF microfilter was born.