Yahoo informs Facebook of more potential patent infringements

Yahoo is already suing Facebook for alleged infringement of 12 of its patents

Yahoo is said to have written to Facebook indicating that it believes that 16 patents it claims to hold "may be relevant" to open source technology allegedly being used in the data centers and servers of the social networking company, according to a regulatory filing by Facebook on Thursday.

The Internet company has not threatened or initiated litigation in connection with the matters referred to in the letter of April 23, "but it may do so in the future," Facebook said in the filing.

Yahoo filed a lawsuit in March against Facebook alleging that the company had infringed on 10 of its patents, and last month added two more patents to its complaint. "As is common in intellectual property litigation, Yahoo could in the future assert additional patent or other claims against us in this or in other proceedings," Facebook said in the filing.

Facebook denied infringing Yahoo's patents, and countered by alleging that Yahoo had infringed 10 of its patents. Yahoo claimed in a filing before a federal court that eight of the patents were acquired by Facebook in the last five months, and several were purchased after Yahoo filed the suit.

"On information and belief, many, if not all, of these patents were acquired by Facebook for purposes of retaliation against Yahoo! in this case," Yahoo said in the filing before the U.S. District Court for the Northern District of California, San Francisco division.

Yahoo claims that there is an agreement between the in-house counsels for the two companies to raise intellectual property issues with each other in the first instance.

The April 23 letter to Facebook about other potential patent infringements may be in line with the agreement.

Yahoo and Facebook were not immediately available for comment on Facebook's filing.

John Ribeiro covers outsourcing and general technology breaking news from India for The IDG News Service. Follow John on Twitter at @Johnribeiro. John's e-mail address is john_ribeiro@idg.com

Join the newsletter!

Or

Sign up to gain exclusive access to email subscriptions, event invitations, competitions, giveaways, and much more.

Membership is free, and your security and privacy remain protected. View our privacy policy before signing up.

Error: Please check your email address.
Keep up with the latest tech news, reviews and previews by subscribing to the Good Gear Guide newsletter.

John Ribeiro

IDG News Service
Show Comments

Cool Tech

Toys for Boys

Family Friendly

Stocking Stuffer

Logitech Ultimate Ears Wonderboom Bluetooth Speaker

Learn more >

SmartLens - Clip on Phone Camera Lens Set of 3

Learn more >

Christmas Gift Guide

Click for more ›

Brand Post

Most Popular Reviews

Latest Articles

Resources

PCW Evaluation Team

Maryellen Rose George

Brother PT-P750W

It’s useful for office tasks as well as pragmatic labelling of equipment and storage – just don’t get too excited and label everything in sight!

Cathy Giles

Brother MFC-L8900CDW

The Brother MFC-L8900CDW is an absolute stand out. I struggle to fault it.

Luke Hill

MSI GT75 TITAN

I need power and lots of it. As a Front End Web developer anything less just won’t cut it which is why the MSI GT75 is an outstanding laptop for me. It’s a sleek and futuristic looking, high quality, beast that has a touch of sci-fi flare about it.

Emily Tyson

MSI GE63 Raider

If you’re looking to invest in your next work horse laptop for work or home use, you can’t go wrong with the MSI GE63.

Laura Johnston

MSI GS65 Stealth Thin

If you can afford the price tag, it is well worth the money. It out performs any other laptop I have tried for gaming, and the transportable design and incredible display also make it ideal for work.

Andrew Teoh

Brother MFC-L9570CDW Multifunction Printer

Touch screen visibility and operation was great and easy to navigate. Each menu and sub-menu was in an understandable order and category

Featured Content

Don’t have an account? Sign up here

Don't have an account? Sign up now

Forgot password?