I have also seen that when the Nazis confiscated Jewish property in the Teplice area in 1940 the owner of the Loewy works in Tischau was Hedwig Hirsch aka Hedwig Baum Hirsch (nee Steinwald). She married twice. She was the daughter of Ernst Steinwald, the glass manufacturer in Teplice.
The liquidated property of Jewish foundations and associations, especially financial ones, was transferred a fund called : "Auswanderungsfond für Böhmen und Mähren" The fund then financed the deportation of Jews to concentration camps. It seems that Emmahuette was retained and made into a POW camp : "Stalag IVC".
I believe that in 1940 Hedwig Hirsch was co-owner of Ernst Steinwald & Co., in Teplice with a cousin called Paul Karpeles (aka Pavel Karpeles).
Hedwig was also listed as being the owner of the following companies:
a) Josef Rindskopf ́s Söhne, Glasfabriken in Kosten, Dux und Tischau
b) Glasfabriken Fischmann Söhne
c) Glashüttenwerke "Emmahütte" Otto Löwy & Co. in Mstisov
Hedwig's date of death is not known but I believe she was a victim of the Holocaust.
Interestingly Paul Karpeles too went to England.
He was living at 30 Westcotes Drive, Leicester in April 1949. just a short walk to the Mawby & King factory. He died in Reigate in 1984.
It seems that in England he knew the manager of The English Glass Company Ltd. who had been a director of Glasfabriken Fischmann Söhne. His name was Josef Oplatek.
His story is contained in a book written by his son published in 2014 :
LITTLE THINGS IN GLASS AND METAL AND PLASTIC TOO
A biography of The English Glass Company Ltd 1934 to 1990
TOM J LAWSON - GML PUBLISHING