1949 POLO-Filter-Technik Bremen GmbH was founded, original under the name: Dr. Ing. Erich Dinglinger KG.
1950 During the founding period and the next few years, filters for cleaning fuels and lubricating oils were build for large engines for marine applications.
Another important branch was automatically operating, self-cleaning magnetic filters for purification of emulsions and oils used cold-rolling sheet metal - the first machines of this type .
1964 1964 POLO became the first company to offer self-cleaning, reversible flow filters to meet the requirements for supervision-free operation on ocean liners.
1970 Changes in the economy resulted in expansion into another, important commercial sector; machine tool constructions and its users. In the middle of the seventies POLO offered a patented suction belt drum filter operating with a mat, a compact unit predestined for use with machine tools. This was a significant step in the direction of environmental protection.
1980 The filters are designed and sold for the most part as complete lubricant treatment systems, meaning that all peripheral equipment for the filtering operations are planned and connected. In addition to the filter, this includes the pumps for the various pressure stages, storage reservoirs for contaminated and purified mediums, cooling, air purification and chip separation.
1986 CAD systems replaced drawing machines.
1990 The demands for simple disposal and cost reduction became increasingly louder and more urgent, the more the costs increased as a result of more and more stringent requirements. This resulted in development of filters without filtering aids (matting). Various filter systems with continuous synthetic belts or stainless steel mesh were offers, even though it is still not possible to replace mat-type filters for extremely fine filters.
1998 POLO Filter-Technik introduced a quality management system in conformance with DIN EN ISO 9001.
1999 POLO Filter-Technik's 50th anniversary.
2001 Engineering and Administration moved into a new building close to production and storage and profit from the short communication paths and state-of-the-are office engineering.