Mark Identification

ASPEN AEROTRAN

Serial Number

75496208

Filing Date

Jun 3, 1998

Registration Date

Mar 18, 2003

Trademark by

ASPEN TECHNOLOGY INC.

Classification Information

Computer software programs for use in thermal design, rating and simulation of air-cooled heat exchangers, economizers and the convection section of fired heaters, offered with and without user manuals

Electrical and Scientific Apparatus