News & Press

Legal Victory for Green Hills Software’s µ-velOSity

All Express Logic Claims Denied

SANTA BARBARA , CA—August 21, 2007—Green Hills Software, Inc., the technology leader in device software optimization (DSO) and real-time operating systems (RTOS), announced today that an arbitration panel has denied all claims brought against Green Hills Software by Express Logic.

Express Logic accused Green Hills Software of illegally copying the ThreadX Application Programming Interface (API). “This accusation was particularly hypocritical in light of Express Logic’s copying of competitors’ APIs in its ‘evacuation kits,’” said Dan O’Dowd, founder and chief executive officer, Green Hills Software. “The arbitrators ruled that the ‘ThreadX API is not protected by copyright law; it can be copied at will and without attribution.’”

John Carbone, vice president of marketing at Express Logic, was quoted by EETimes as saying that Express Logic pursued an injunction against Green Hills Software’s µ-velOSity real-time operating system in order to “stop the bleeding.” Express Logic’s attempt to destroy µ-velOSity with litigation, rather than fair competition in the marketplace, has failed. Notwithstanding this lawsuit, µ-velOSity sales have remained robust and are growing.
Ironically, Express Logic accused Green Hills Software of unfair competition. This claim was rejected by the arbitrators. “We have always embraced fair competition, in which customers are free to choose the technology that best serves their applications and business objectives,” said David Chandler, senior vice president of sales, Green Hills Software. “Our 25 year track record in enabling customer success speaks for itself.”

Express Logic accused Green Hills Software of falsely advertising µ-velOSity as smaller and faster than Express Logic’s ThreadX operating system. This claim was also rejected by the arbitrators. The arbitrators said that “David Lamie [vice president of sales, Express Logic] testified that µ-velOSity is smaller than ThreadX.” The arbitrators concluded that “Express Logic also failed to prove that the statement that µ-velOSity is smaller and faster than ThreadX is false.”

“We are vindicated by this judgment,” said Dan O’Dowd. “Express Logic’s campaign to instill fear, uncertainty, and doubt about µ-velOSity has failed. We regret any inconvenience this litigation has caused our customers. This final arbitration award ensures that embedded developers can continue to use µ-velOSity with confidence.”

For more detail on the arbitration, go to:

Express Logic Arbitration Final Award (pdf)

About Green Hills Software
Founded in 1982, Green Hills Software, Inc. is the technology leader in device software optimization (DSO), real-time operating systems (RTOS), and next-generation security solutions. Our royalty-free INTEGRITY® and velOSity™ real-time operating systems, µ-velOSity™ microkernel, compilers, MULTI® and AdaMULTI™ integrated development environments and TimeMachine™ tool suite offer a complete development solution that addresses both deeply embedded and high-reliability applications. Green Hills Software is headquartered in Santa Barbara, CA, with European headquarters in the United Kingdom. Visit Green Hills Software at

Green Hills, the Green Hills logo, MULTI, INTEGRITY, velOSity, µ-velOSity, AdaMULTI and TimeMachine, are trademarks or registered trademarks of Green Hills Software, Inc. in the U.S. and/or internationally. All other trademarks are the property of their respective owners.

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