NEWPORT BEACH, Calif.--(BUSINESS WIRE)--April 6, 2006--Acacia Research Corporation (Nasdaq:CBMX - News; Nasdaq:ACTG - News) announced today that its CombiMatrix group paper describing the Influenza Surveillance technology has been published in the April edition of the Journal of Clinical Microbiology. This journal publishes the most-current research on microbiological aspects and diagnosis of human and animal infections and electronic versions of scientific publications can been accessed online at http://jcm.asm.org/current.dtl. The paper is titled “Use of Semiconductor-Based Oligonucleotide Microarrays for Influenza A Virus Subtype Identification and Sequencing.” This research was conducted in collaboration with the U.S. Air Force Institute of Operational Health and the group of Dr. Richard J. Webby at the Infectious Diseases department of St. Jude Children’s Research Hospital, chaired by Dr. Robert G. Webster.