Case Filed: Aug 01, 2011
Case Closed: Nov 25, 2013
Case Duration: 847 Days
Court: California Northern
District Court
Judge: Jon S. Tigar
Case Summary:
Microsoft was sued by TriStrata,
which develops software to secure information for computer based businesses. The suit also included Adobe as another
defendant and was filed accusing defendants’ products use the methods/processes
claimed in the patents-in-suit. The patents involved in the suit were: US7257706
and US7743249 both entitled ‘Method of securing a document in a system and
controlling access to the document and a seal for use in the method’ issued on Aug
14, 2007 and Jun 22, 2010, respectively. The patents expire[i]
by Aug 09, 2019 and are assigned to TriStrata (as per the face page).
Martin Atalla, the founder of TriStrata
is also one the inventors of the ‘706 and ‘249 patents. The patents relate to
secure communications and in particular to systems and methods for multicast
key management.
The complaint accused Microsoft for
its distribution of Windows Server and Client products and Office applications
software and Adobe for selling LiveCycle Right Management ES and Flash Media
Rights Management Server software. It said defendants infringed the patents by
selling products/software using methods/processes for digital information
transfer as claimed in the patents-in-suit.
On Nov 15, parties agreed that
the accused Microsoft and Adobe products do not infringe the ‘706 and ‘249
patents as alleged by TriStrata and filed a joint stipulation for entry of
final judgment. Upon consideration of the stipulation filed, the Court signed
off the final judgment on Nov 22 in favor of Microsoft and Adobe and ordered
the counterclaims to be dismissed without prejudice.
See 3:11-cv-03797 for more details. To get alerts on cases filed/closed,
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[i]
Expected expiration date. Patent Term Estimator
is a free web-based tool that automatically calculates patent terms and
expiration dates for U.S. utility patents.
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