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O2Micro Granted U.S. Patent for Protection Circuit Architecture

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GEORGE TOWN, Grand Cayman, Jan. 3, 2013 (GLOBE NEWSWIRE) -- O2Micro® International Limited (Nasdaq:OIIM), a global leader in the design, development and marketing of high-performance integrated circuits and solutions, today announced that it was issued 24 claims under United States patent number 8,248,259 for its Protection Circuit with Timer architecture.

This patented architecture, within a Lithium Ion (Li-Ion) battery for example, enables the protection function to completely and safely disconnect a charging source from any undesired conditions. For example, if a battery over-voltage condition occurs, a series of signals are triggered that enable the protection function.

Bill Densham, strategic marketing director, O2Micro, said "This patent ensures that protection functions are fully executed after encountering a fault condition, protecting end users from potentially dangerous conditions caused by partially implemented protection."

About O2Micro

Founded in April 1995, O2Micro develops and markets innovative power management and e-commerce components for the Computer, Consumer, Industrial, and Communications markets. Products include Intelligent Lighting, Battery Management, and Power Management.

O2Micro International maintains an extensive portfolio of intellectual property with 21,475 patent claims granted, and over 22,000 more pending. The company maintains offices worldwide. Additional company and product information can be found on the company website at www.o2micro.com.

O2Micro, the O2Micro logo, and combinations thereof are registered trademarks of O2Micro. All other trademarks or registered trademarks are the property of their respective owners.

The O2Micro International Limited logo is available at http://www.globenewswire.com/newsroom/prs/?pkgid=6567

Statements made in this release that are not historical, including statements regarding O2Micro's or management's intentions, hopes, beliefs, expectations, representations, projections, plans or predictions of the future, are forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Such statements involve risks and uncertainties that may cause actual results to differ materially from those set forth in these statements. Factors that could cause actual results to differ materially include risks and uncertainties such as reduced demand for products of electronic equipment manufacturers which include O2Micro's products due to adverse economic conditions in general or specifically affecting O2Micro's markets, technical difficulties and delays in the developments process, and errors in the products. You are also referred to the Form F-1 in connection with the company's initial public offering in August 2000, Form F-3 in connection with the company's public offering in November 2001, and the annual reports on Form 20-F, which identify important risk factors that could cause actual results to differ from those contained in the forward-looking statements. The company assumes no obligation to update or revise any forward-looking information, whether as a result of new information, future events or otherwise.

CONTACT: Scott L. Anderson Director of Investor Relations, O2Micro Phone: 408.987.5920, x8888 Email: scott.anderson@o2micro.com

Source:O2Micro International Limited