2014 Doubled the production area of the “Weißandt Gölzau” location.
2012 Incorporation of ventilation process systems for coating and drying processes Hall heating division launches new "Thermovent mixed air distributor"
2011 Hall heating division launches newly developed decentralised "Rhineland“ warm air heater with innovative, decentralised condensing boiler technology“
2010 Incorporation of regenerative energy recovery in the hall heating business division
2007 Incorporation of industrial operator model in water treatment business division
2004 Further development of the water treatment / recycling process
2000 DIN EN ISO 9001 certification
1993 Expansion of Schwabach site with additional 3,500m² production area
1990 Opening of the Weißandt Gölzau location
1989 Move from Nuremberg to new 3,500m² production facility in Schwabach
1980 Establishment of the "Water treatment" business division
1978 Establishment of the "Industrial sound insulation" business division
1976 LK Metallwaren GmbH arises from Leonhard Kolb
1960 Establishment of "hall heating" business division (Rhineland warm air heaters)
1862 Establishment of Leonhard Kolb (specialised factory for railroad lanterns)