2 trademarks were found for owners matching the name Wilhelm Siefer GmbH .
#Classstatus
1 S:79097692
M:SIEFER
O:Wilhelm Siefer GmbH & Co. KG
7 Dead
2 S:79098092
M:TRIGONAL
O:Wilhelm Siefer GmbH & Co. KG
7 Dead
Trademark Alertz updated from USPTO on 2030-01-24