2 trademarks were found for owners matching the name Keller, Duane.
#Classstatus
1 S:78770273
M:PERIO SOLUTION
O:Keller, Duane
5 Dead
2 S:78768703
M:TETRAFLOSS
O:Keller, Duane
5 Dead
Trademark Alertz updated from USPTO on 2030-01-24