Mark Identification

DECISION ENGINEERING ANALYZER

Serial Number

75687005

Filing Date

Apr 20, 1999

Registration Date

May 22, 2001

Trademark by

ASPEN TECHNOLOGY INC.

Classification Information

system of computer software programs that provide conceptual designs, capital and cost estimates for studying technology selection or upgrades for construction and investment in the chemical processing, energy producing, petrochemical, pharmaceutical, food, pulp and paper, ore beneficial and other industries

Electrical and Scientific Apparatus