A US district court has ruled in Symantec’s favour over security patent violations alleged by SRI International.
The Delaware court granted Symantec summary judgment against all patent infringement claims before the case came to trial.
The court ruled that SRI’s patents were invalid, based on prior printed publications authored by SRI employees more than a year before the earliest patent application had been filed.
SRI has the right to appeal against the judgement. The company also sued Symantec in 2004, alleging that Symantec had infringed four network intrusion detection patents.
At Symantec’s request, the US Patent and Trademark Office declared it would independently re-examine the patentability of some patents, based on several different prior art publications.
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