2 trademarks were found for owners matching the name QBL Systems, Inc..
#Classstatus
1 S:78259268
M:QUERY BASED LEARNING
O:QBL Systems, Inc.
41 Dead
2 S:73390481
M:QBL SYSTEMS
O:QBL Systems, Inc.
39 Dead
Trademark Alertz updated from USPTO on 2030-01-24