2 trademarks were found for owners matching the name D. W. Porter .
#Classstatus
1 S:74353266
M:THE ELECTRONIC DATA VAULT SERVICE

O:D. W. Porter Associates, Inc.
42 Dead
2 S:74351588
M:VAULTLINK

O:D. W. Porter & Associates, Inc.
9 Dead
Trademark Alertz updated from USPTO on 2030-01-24