1946
The limited liability company L´Orange-Einspritzgeräte GmbH Sangerhausen was set up by Prosper L´Orange´s widow. Mr. Prosper L´Orange (1876-1939) developed the in/line fuel injection pump with helix metering in the twenties.

1948
The head office of the company was moved from Sangerhausen to Dresden.

1962
Founding of L´Orange-Einspritzgeräte KG, incl. state shareholdings, in Dresden.

1972
Expropriation of L´Orange-Einspritzgeräte KG and nationalization of the company by the name of VEB Dresdner Einspritzgeräte.

1980
VEB Dresdner Einspritzgeräte became a branch business of VEB Barkas ? Werke Karl-Marx-Stadt (today Chemnitz).

1990
Request for reassignment of the company facilities to the former owners.

1991
L´orange-einspritzgeräte GmbH i. G. took over the production facilities for fuel injection pumps from the former Barkas - Werke.

1992
The company was denationalised with effective from July 1, 1992

1994
On January 19, 1994, the company was officially registered as L´orange-einspritzgeräte Dresden GmbH & Co. KG

1995
On January 1, 1995, L´orange-einspritzgeräte Dresden GmbH & Co. KG, took over the facilities for the production of fuel injection pump elements and nozzles in Lengenfeld from the former RENAK ? Werke.

1998
On January 1, 1998, the company was officially registered as Dresdner Einspritzsysteme GmbH & Co KG. At the same time ERMAX ? Trading GmbH, an 100% daughter of the Danish company ERMAX A/S (Objective A/S), took over Dresdner Einspritzsysteme.

1999
the company-management decided that the location Dresden should preferably engage itself with the industrial repair of diesel injection pumps.

2003
the owners of the Objective group decide the sale of the whole group or as individual companies

2005
at the 1^st July 2005 the activities of the plant Lengenfeld are sold to the sister-company Monark Diesel, Hamburg.

2007
at the 2^nd April 2007 DES becomes Diesel Repair services partners of SIEMENS VDO