Feeds

US shoots down key Rambus patent

Barth trio invalidated, multimillion income stream dries up

Designing a Defense for Mobile Applications

Legal attack dog Rambus has suffered another blow to its memory technology licensing business after a US patent office appeals board declared three Barth patents invalid.

Reuters reports that the three Barth patents refer to PC memory controllers and have been used by Rambus to collect millions of dollars in licensing fees from HP, Nvidia and other suppliers. The appeals board cut two of them down in September last year and the third one fell on 24 January.

This decision comes after Rambus lost a near-$4bn lawsuit against Micron and Hynix Semiconductor in November 2011.

It is thought unlikely that Rambus will appeal the latest ruling as the patent officer examiner looking at it would not want to disagree with the appeals board. The overall effect would be to reduce Rambus' patent licence income stream.

Rambus is emphasising LED lighting and cryptography in its recent activities and may be preparing to gradually vacate the computer memory field, a strategy that would be loudly applauded by its memory licensees and bruised legal case opponents in that area. ®

Securing Web Applications Made Simple and Scalable

More from The Register

next story
You! Pirate! Stop pirating, or we shall admonish you politely. Repeatedly, if necessary
And we shall go about telling people you smell. No, not really
UK Parliament rubber-stamps EMERGENCY data grab 'n' keep bill
Just 49 MPs oppose Drip's rushed timetable
MPs wave through Blighty's 'EMERGENCY' surveillance laws
Only 49 politcos voted against DRIP bill
EU's top data cops to meet Google, Microsoft et al over 'right to be forgotten'
Plan to hammer out 'coherent' guidelines. Good luck chaps!
US judge: YES, cops or feds so can slurp an ENTIRE Gmail account
Crooks don't have folders labelled 'drug records', opines NY beak
Delaware pair nabbed for getting saucy atop Mexican eatery
Burrito meets soft taco in alleged rooftop romp outrage
LightSquared backer sues FCC over spectrum shindy
Why, we might as well have been buying AIR
'Two-speed internet' storm turns FCC.gov into zero-speed website
Deadline for comments on net neutrality shake-up extended to Friday
prev story

Whitepapers

Reducing security risks from open source software
Follow a few strategies and your organization can gain the full benefits of open source and the cloud without compromising the security of your applications.
Consolidation: The Foundation for IT Business Transformation
In this whitepaper learn how effective consolidation of IT and business resources can enable multiple, meaningful business benefits.
Application security programs and practises
Follow a few strategies and your organization can gain the full benefits of open source and the cloud without compromising the security of your applications.
Boost IT visibility and business value
How building a great service catalog relieves pressure points and demonstrates the value of IT service management.
Consolidation: the foundation for IT and business transformation
In this whitepaper learn how effective consolidation of IT and business resources can enable multiple, meaningful business benefits.