DWS by DWS Associates, Inc. (Track this)
Intl: (040) Treatment of materials US: 100; 103; 106 Filing date: 23-Mar-2004 Serial number: 76582468
DWS by ASHLAND LICENSING AND INTELLECTUAL PROPERTY LLC (Track this)
Intl: (001) Chemicals US: 006 Filing date: 12-Nov-1992 Serial number: 74330600