Mark Identification

ALEXANDRIA B2B NETWORK

Serial Number

76056252

Filing Date

May 24, 2000

Registration Date

May 11, 2004

Trademark by

ALEXANDRIA REAL ESTATE EQUITIES INC.

Classification Information

promoting the goods and services of others by preparing and placing advertisements on web sites accessed via a global communications network; providing a web site and database accessed via a global communications network featuring information and resources about goods and services for companies and organizations engaged in life science, high technology and/or real estate activities; operating on-line marketplaces for sellers of goods and/or services for companies and organizations in the field of real estate, life science, laboratories, and computers

Advertising and Business

maintaining web sites featuring on-line catalogs for others

Computer and Scientific