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O2Micro Receives Key UK Patent for VPN Firewall System
March 27, 2006. O2Micro® International Limited (Nasdaq: OIIM; SEHK: 0457), a leading supplier of innovative power
management and security components and systems for the Computer, Consumer, Industrial, and Communications markets, was issued 12 claims under GB (Great Britain) patent number 2,407,464 for its VPN Firewall Integrated System.
"We are excited to receive this patent grant for the VPN Firewall Integrated System. O2Micro's SifoWorks™ and Succendo™ firewall products include this patented architecture," commented Max Huang, executive vice president of
O2Micro's Intelligent E-commerce business unit.
O2Micro's innovative system architecture, protected by the patent claims, is the foundation for the SifoWorks™ product families and enables superior price-performance for the corporate user.
SifoWorks™ is based on proprietary ASIC technologies, capable of 5Gbps firewall throughput, and achieves a wide range of high performance security functions at wire speed. It is well suited for medium and large scale enterprises, universities, systems integrators and OEMs.
Succendo™ simplifies secure remote intranet access with an innovative SSL VPN solution. Users of home and mobile offices, business partners, etc. can easily and securely access the company's intranet via Succendo.
About O2Micro
Founded in April 1995, O2Micro develops and markets innovative power management, and security components and systems for the Computer, Consumer, Industrial, and Communications markets. Products include Intelligent Lighting, Battery Management, Power Management,
SmartCardBus® and Security products, such as VPN/Firewall system solutions.
O2Micro International maintains an extensive portfolio of intellectual property with 4,598 patent claims granted, and over 5,000 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, SmartCardBus, and combinations thereof are registered trademarks of O2Micro. SifoWorks, Succendo, and combinations thereof are trademarks of O2Micro.
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 Information:
Gil Goodrich
Director of Investor Relations, O2Micro
Phone: 408.987.5920, Ext. 8013
Email: gil.goodrich@o2micro.com

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