Patent attorneys David Carstens and Colin Cahoon founded Carstens, Allen & Gourley as an intellectual property firm based in Dallas in 1998. Starting off with only three lawyers and two support staff, Carstens, Allen & Gourley has grown into one of the largest intellectual property law firms in Texas — and the Southwestern United States. The reason for our growth is simple... we are among the best IP attorneys anywhere. We have strong technical experience and years of hands-on experience providing patent services, insight and global execution.
