Bookmark and Share


The U.S patent and trademark office has rejected claims of Rambus company over infringing intellectual property by companies that utilize technologies like DDR and other. In particular, the U.S. government abandoned so-called Barth patents that Rambus got as a result of an acquisition.

The Barth family of three patents include DDR, DDR2, DDR3, mobile DDR, LPDDR, LPDDR2 and GDDR3 memory controllers. An appeals board at the U.S. Patent and Trademark Office declared the patent invalid on January 24, according to a ruling posted on their website. The previous two were declared invalid in September, according to Reuters news-agency.

Rambus has already lost a case against memory manufacturers Hynix Semiconductor and Micron. Invalidation of Barth family of patents is more than a bad news for Rambus as now it will be unable to sue companies that manufacture or develop dynamic random access memory (DRAM) or develop memory controllers.

Rambus can appeal the latest decision from the PTO. "We're evaluating our options," said the company spokeswoman Linda Ashmore.

Tags: Rambus, DDR, Micron, DDR2, Hynix, LPDDR


Comments currently: 6
Discussion started: 01/28/12 11:55:48 AM
Latest comment: 01/29/12 06:59:51 PM


Finally RAMBUS has lost the illegal patents they had attained thru corruption and fraud.
4 0 [Posted by: beenthere  | Date: 01/28/12 11:55:48 AM]

RAMBUS is the worst fraud company i have ever heard of........
They live by getting money through illegal patents. I think they don't even know to manufacture a PC100 SDRAM. Fckrsss
1 0 [Posted by: tks  | Date: 01/29/12 02:54:41 AM]

They are most definitely unscrupulous...
0 0 [Posted by: beenthere  | Date: 01/29/12 11:17:39 AM]

That's maybe the reason why DDR1 so expensive even these days, coz of this RAMBUS. Hoping they will obliterate soon.
0 0 [Posted by: pogsnet  | Date: 01/29/12 02:35:41 PM]

Well all the hate to rambus may be due as they did obtain patents steathily. However lets see how many of you are after google since their purchase of motorola mobility (same way of obtaining patents) to attempt to avoid the very real legal troubles they should be punished for with android.
0 0 [Posted by: gelde3001  | Date: 01/29/12 06:51:58 PM]

RAMBUS helped define DDR and then went and filed for patents on it which is fraud. Thats' why their DDR patents are being stripped.
0 0 [Posted by: beenthere  | Date: 01/29/12 06:59:51 PM]


Add your Comment

Related news

Latest News

Wednesday, November 5, 2014

10:48 pm | LG’s Unique Ultra-Wide Curved 34” Display Finally Hits the Market. LG 34UC97 Available in the U.S. and the U.K.

Wednesday, October 8, 2014

12:52 pm | Lisa Su Appointed as New CEO of Advanced Micro Devices. Rory Read Steps Down, Lisa Su Becomes New CEO of AMD

Thursday, August 28, 2014

4:22 am | AMD Has No Plans to Reconsider Recommended Prices of Radeon R9 Graphics Cards. AMD Will Not Lower Recommended Prices of Radeon R9 Graphics Solutions

Wednesday, August 27, 2014

1:09 pm | Samsung Begins to Produce 2.13GHz 64GB DDR4 Memory Modules. Samsung Uses TSV DRAMs for 64GB DDR4 RDIMMs

Tuesday, August 26, 2014

10:41 am | AMD Quietly Reveals Third Iteration of GCN Architecture with Tonga GPU. AMD Unleashes Radeon R9 285 Graphics Cards, Tonga GPU, GCN 1.2 Architecture