Acacia Research-Acacia Technologies (Nasdaq:ACTG ) and Acacia
Research-CombiMatrix (Nasdaq:CBMX) are both classes of common stock
issued by Acacia Research Corporation and are intended to reflect the
performance of the respective operating groups and are not issued by
the operating groups. "The DoD has been looking for an
effective text-to -data solution for many years and has become
increasingly selective in their awards.
These contracts support our ongoing efforts to enhance InFact, a
market-leading relationship search product, and make it available for
both commercial and defense applications.

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The CombiMatrix's group's technology has a
wide range of potential applications in the areas of genomics,
proteomics, biosensors, drug discovery, drug development, diagnostics,
combinatorial chemistry, material sciences and nanotechnology .

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With InFact, intelligence analysts can
perform relationship searches that can uncover the cause -and-effect
patterns that are critical for intelligence decision-making. And, unlike other search tools that
have attempted to utilize natural language processing to move beyond
keyword search , InFact's indexing is automatic and doesn't require the
time and expense of a hand-entered knowledge base (list of terms),
manually "meta-tagged" documents, or laboriously prepared rule books.

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patents , and certain foreign counterparts, covering
technologies used in a wide variety of industries including
audio/video enhancement + synchronization, broadcast data retrieval,
computer memory cache coherency , credit card fraud protection,
database management, data encryption + product activation, digital
media transmission (DMT(R)), digital video production, dynamic
manufacturing modeling, enhanced Internet navigation, image resolution
enhancement, interactive data sharing, interactive television ,
Internet access redirection, interstitial Internet advertising,
microprocessor enhancement, multi -dimensional bar codes, network data
storage, resource scheduling, rotational video imaging and spreadsheet
automation.

The goal of the contract is to enable intelligence
decision makers to analyze growing databases of text data in an
effective, unbiased, and systematic fashion.
The second contract, awarded by the US Army Corps of Engineers in
December 2004, aims to develop a system for detecting references to
geographical locations in text and displaying the result of a search
on a map display.

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acaciaresearch. InFact parses the structure of each sentence,
understanding the sentence components, such as which words are nouns
and which are verbs.

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Acacia Technologies Initiates Patent Infringement Lawsuit against Intel and Texas Instruments

Acacia controls 29 patent portfolios , which
include 127 U.0 combines the power of
interactive relationship search with the flexibility of a search
engine.

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The CombiMatrix group is developing a platform technology to
rapidly produce customizable arrays, which are semiconductor-based
tools for use in identifying and determining the roles of genes, gene
mutations and proteins."

ABOUT INFACT

InFact provides natural language-based text search and analysis
technology that enables professional analysts and researchers , who
have long been frustrated by the inaccuracy and limitations of keyword
search and early generation natural language processing search, to
accurately uncover facts and relationships within text documents .

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Intel does not break out individual chip
sales, but analysts have predicted that sales of Itanium processors
will reach several billion dollars a year by 2007. By conditionally executing
instructions in this architecture, significant improvements in
processor speed can be achieved.
InFact 3.

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These statements are based upon our
current expectations and speak only as of the date hereof.
Actual results could differ materially from those expressed or implied
by the forward-looking statements for a number of reasons, including,
without limitation, the risks associated with government funding
decisions, errors or defects in our software; the risks associated
with our ability to compete in the markets we serve; and the risks
associated with market demand and customer acceptance of our products. You should not unduly rely on these forward-looking
statements, which apply only as of the date of this release. We
undertake no obligation to update publicly any forward-looking
statements to reflect new information, events, or circumstances after
the date of this release or to reflect the occurrence of anticipated
events.

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These new
contracts will support Insightful's ongoing efforts to tailor InFact's
linguistic capability to meet the needs of the intelligence community.
Because InFact is designed to fully understand the grammar,
syntax, semantics, and linguistic structure of every sentence it
reads, its powerful and expressive query syntax can be used to search
for very specific relationships, actions, or facts, thereby enabling
very precise and accurate searching and increasing analyst
productivity and the quality of intelligence retrieved from text
documents . A keyword
approach to search and retrieval of text data strips language of
context. For more information, visit
info@insightful.

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Certain pipelined processor
manufacturers are adopting this method of processing to improve
processor speed.com

Safe Harbor Statement under the Private Securities Litigation
Reform Act of 1995:

This news release contains forward-looking statements within the
meaning of the "safe harbor" provisions of the Private Securities
Litigation Reform Act of 1995. All information about dependencies, actions, and word
relationships is lost.S. The company is a
leading supplier of software and services for statistical data
analysis, data mining, and knowledge access enabling clients to gain
intelligence from numeric and text data.
Insightful products include S-PLUS(R), Insightful Miner(TM),
S-PLUS(R) Server, and InFact(R).

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Business Editors

NEWPORT BEACH, Calif.
The Acacia Technologies group develops, acquires, and licenses
patented technologies.
Because InFact is designed to understand the complexity of natural
language and offers the capability to conduct comprehensive,
interactive relationship searches, it can provide the ability to
quickly correlate relationships and facts across millions of
documents.
InFact fills an important gap in the text analysis market for
intelligence.
InFact transcends text search as the world has known it over the
past two decades.
Headquartered in Seattle, Insightful has offices in New York City,
North Carolina, France, Switzerland, and the United Kingdom, with
distributors around the world.com

Note to Investors -- Forward-Looking Statements

This press release contains forward-looking statements, including
statements about expected outcomes from government research grants;
the capabilities of InFact; InFact product features; the capabilities
of competing products now or in the past; and customer acceptance of
our software products.

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We undertake no obligation to
revise or update publicly any forward-looking statements for any
reason. Air Force
contract awarded in December 2004 and an NIH contract awarded in
February 2005, to fund the development of InFact.
More detailed information regarding these and other factors that could
affect actual results is set forth in our filings with the Securities
and Exchange Commission, including our most recent Quarterly Report on
Form 10-QSB.

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"We are delighted that we have received these contracts as a
result of our fundamental breakthroughs in technology, continued
validation, and growing adoption of InFact in the intelligence space,"
said Giovanni Marchisio, director of research and development for
emerging products at Insightful.

ABOUT INSIGHTFUL

Insightful Corporation (NASDAQ:IFUL ) provides enterprises with
scalable data analysis solutions that drive better decisions faster by
revealing patterns, trends, and relationships.

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They have identified
mission-critical solutions in areas where Insightful has a
demonstrated leading edge and a number of key patents, like
distributed indexing, relationship extraction, and semantic modeling.

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Microprocessor Enhancement Corporation 's patent generally relates
to an architecture employed in advanced pipeline processors. Inaccurate assumptions and known and unknown risks and
uncertainties can affect the accuracy of forward-looking statements.

rsa roddick

The two contracts are valued at a total of
approximately $800,000. Combinations of nouns , verbs, and other sentence
components connote relationships, actions, or facts and are stored in
a searchable database structure.

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----Acacia
Research Corporation (Nasdaq:ACTG)(Nasdaq:CBMX) announced today that
Microprocessor Enhancement Corporation, a wholly owned subsidiary that
is part of the Acacia Technologies group, a leader in technology
licensing, has filed a patent infringement lawsuit in the District
Court for the Central District of California against Intel Corporation
and Texas Instruments Corporation. This
architecture allows for conditional execution of processor
instructions , and a later determination of whether the instructions
executed should be written back to memory . Our Annual Report on Form 10-K,
recent and forthcoming Quarterly Reports on Form 10-Q, recent Current
Reports on Forms 8-K and 8-K/A, and other SEC filings discuss some of
the important risk factors that may affect our business, results of
operations and financial condition. With InFact, military intelligence analysts would be able to
move beyond the keyword search, entity recognition, and human
categorization approaches used by consumer search technologies. By contrast, InFact uses a multilevel approach
that uses grammar, semantics, and syntax to capture actions and facts
from documents .

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The first contract, awarded by the Office of the Secretary of
Defense in January 2005, will be monitored by the Army Research
Institute (ARI). Currently, analysts rely
on standard search technologies to assess large heterogeneous data
sources, such as collections of intercepted messages or intelligence
reports. Existing search engines see documents as "bags of
keywords" stripped of context or sentence structure.

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Four federal intelligence agencies have licensed InFact to
assist in searching and analyzing large amounts of intelligence
traffic data.0 delivers an interactive text query language that enables
users to execute custom, flexible, and complex searches from a simple
Web interface (much like familiar Internet search tools). Forward-looking statements are based on the
judgment and opinions of management at the time the statements are
made.

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The recent release of InFact 3.
Because of the potential significance of this technology to the
federal government, Insightful has been awarded several research
grants over the years, including those discussed in this press release
and the press release dated May 16, 2005, for a U. Insightful consulting services
provide specialized expertise and proven processes for the design,
development, and deployment of customized solutions.

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Information about the Acacia Technologies group and the
CombiMatrix group is available at www.

Insightful Wins Intelligence Contracts for Text Analysis; Military Leaders See Significant Value and Innovation in InFact Text Analysis Product

The receipt of funds
under these research grants is recorded as an offset to research and
development costs rather than revenues.

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Business Editors

SEATTLE-- --Insightful Corporation
(NASDAQ:IFUL), a leading provider of software solutions for analysis
of numeric and text data, today announced that the US Department of
Defense (DoD) awarded Insightful 's InFact(R) Text Analysis Business
Division two contracts to develop enhanced solutions for information
search and discovery.

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The lawsuit alleges patent infringement by Intel's Itanium(R) line
of microprocessors, and certain series of digital signal processors
sold by Texas Instruments.

ABOUT ACACIA RESEARCH CORPORATION

Acacia Research Corporation comprises two operating groups, Acacia
Technologies group and CombiMatrix group.S. Our actual
results may differ materially and adversely from those expressed in
any forward-looking statements as a result of various factors and
uncertainties , including the recent economic slowdown affecting
technology companies, our ability to successfully develop products,
rapid technological change in our markets, changes in demand for our
future products, legislative, regulatory and competitive developments
and general economic conditions.
One of the premier natural language-based text search and analysis
applications in the world today, InFact provides a complete and
effective suite of search and reporting software designed to enable
intelligence analysts to interactively search, quantify, and perform
analysis of hundreds of thousands of relationships among individuals,
organizations, geographical locations, monetary amounts, and other
transactions within minutes. The company has
been delivering industry-leading, high-ROI solutions to thousands of
companies in financial services, life sciences, biotechnology,
telecommunications, manufacturing , plus government and research
institutions.