1931 Erich Lenz founds a small business with Karl Franke in Stettin and starts the production of glass laboratory equipment with a roughly 10-strong workforce.
1945 The company picks up the pieces after the 2nd World War with the rebuilding of the glass blowing shop in Ilmenau in Thuringia.
1952 The firm moves to Wertheim am Main, which has remained the company's domicile to the present day. 
1964 Erich Lenz's son Eckhard joins the business. 
1967  Participation in Lenz Labor Instruments in the Netherlands.
Consistent growth in product sales. As a result of the company's expansion, the production facilities have to be extended several times. The first semi-automatic unit is purchased for the machine grinding shop.
1980 Eckhard Lenz takes over the running of the business. With Unilvetro as its distributor, activities are extended to the Italian market.
1981 Lenz Glasinstrumente celebrates its 50th anniversary with close to 50 employees. 
1982 Lenz enters into cooperation with Rudolf Brand in Wertheim.
1984 Establishment of the subsidiary Vitrum-Vertrieb, which sells arts-&-crafts-type glassware.  
Further participations in Porto Allegre, Brazil, and, in 1991, in Anaheim, Los Angeles.
1995 Completion of the new company building with 4,400 m² of production space and 3,500 m² of storage space.
The company expands enormously and its workforce now grows to 170 employees.
1999 The partners Stefan Lenz and Susanne Eberhard are appointed to the Board of Management of the newly founded Lenz Laborglas GmbH & Co. KG. 
2000 Investment in fully automatic, microprocessor-controlled glass-processing machines − some with robots. Production is based on a DIN ISO 9001/EN 29001 quality management system. In addition to the successful core range of ground joints and glass laboratory equipment, the company increasingly produces systems and one-offs to customer specification, e.g. high-precision application and melting processes and large-volume glass apparatus. 
2002 First design steps in developing a solar vacuum tube collector.
2003 Extension of product range by Lenz flat flange reaction vessel program.
2006 Foundation of subsidiary Lenz Solartechnik and market launch of solar collector Lenz Alpha LR6.

Lenz Laborglas celebrates its 75th anniversary.
2010 Licence agreement with DURAN group.
2011 Expansion of the logistic capacity by investment in new, state-of-the-art storage systems.

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