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Key data

1990
Founding of OPTUL Sieglinde Ullmann based in Alderbach
Production and sales of the glass product range OPTUL Quality Jewels.

1994
Introduction of the color glasses OPTUL FLOAT, which can be fused with Float glass.

2000
The individually owned enterprise OPTUL-Sieglinde Ullmann is converted to OPTUL Spezialglas GmbH.
Sieglinde and Ursula Ullmann are participating managing directors.

2008
Hubertus Ullmann, mentor and product developer at OPTUL Spezialglas GmbH, dies at the age of 79.

2018
Transfer of the glass product range OPTUL Quality Jewels to Ullmannglass Norbert Ullmann e.K. in Osterhofen.

2019
TGK GmbH in Schloß Holte-Stukenbrock takes over the commercialization of the entire Iris Arc product range, above all that of OPTUL FLOAT.

2019
Sieglinde Ullmann, involved in finances and welcoming guests, dies at the age of 89.

2020
Ursula Ullmann closes OPTUL Spezialglas GmbH. The GmbH is in liquidation until June 23, 2021.

2020
HAJ drcení s.r.o. in Novy Bor takes over the logistics and the crushing and sieving work.

2021
Quality assurance, development of new products for float glass, hands-on weekends and training  courses will remain Ursula Ullmann's job.