Energy Recovery Inc Granted Record-Setting Number of New Patents

Company Leads Innovation, Doubles New Patents in 2011 for its Game Changing PX Technology

SAN LEANDRO, Calif.--(BUSINESS WIRE)-- Energy Recovery Inc (NASDAQ:ERII), a leader in the design and development of energy recovery devices and pumps for desalination and other industrial processes, today announced that it was granted four new patents from the United States Patent and Trademark Office (USPTO) in 2011, the most approved in any one year in the Company’s history. All of the patents were related to Energy Recovery Inc’s (ERI) game changing PX™ Pressure Exchanger technology, including its application into osmotic power production.

As a leader and innovator of clean technologies at the intersection of water and energy, ERI is developing innovative solutions that change the economic and environmental impact of industrial applications. The new patents reinforce ERI’s commitment to research and development, both in securing intellectual property and unique applications. ERI’s recent patent awards are further confirmation of the company’s commitment to expanding into new markets with disruptive technologies.

“We are dedicated to creating new and enhanced technologies within our existing markets and beyond. By forging ahead with new technologies, we are developing next-generation products that are critical to the water industry as well as other industrial fluid applications requiring energy efficiency solutions,” said Tom Rooney, chief executive officer at ERI.

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About Energy Recovery Inc

Energy Recovery Inc (NASDAQ: ERII) designs and develops energy recovery devices and pumps that significantly reduce energy consumption for desalination and other industrial processes. In total, Energy Recovery has more than 12,000 devices installed worldwide, helping to save an estimated 10 billion kilowatt hours of energy per year. The company is headquartered in the San Francisco Bay Area with offices in key centers worldwide, including Madrid, Shanghai, and Dubai. For more information about Energy Recovery Inc, please visit www.energyrecovery.com.

Energy Recovery Inc
Audrey Bold, +1-510-746-2529
abold@energyrecovery.com

Source: Energy Recovery Inc

Released January 26, 2012