It seems Yahoo is getting into a big trouble now with Facebook's filing of a countersuit against the company, claiming that yahoo's claims as baseless and insisting that Yahoo has violated its 10 patents.

Last month, the news aired that Yahoo has filed a case against Facebook for patent offense and Facebook was being simply thought to pony up huge cash to be free from all such allegations. Till Tuesday, the talks were all that but the news of Facebook filing countersuit against yahoo has just turned the faces of many.

Facebook has definitely not shown its weaker action as its defensive move rather it has now filed a counter lawsuit a couple of weeks ago against Yahoo claiming that Yahoo has violated 10 of its patents.

Yahoo is said to be beating its company's image across Silicon Valley as people definitely not like the company running this battle.

"Yahoo has clumsily picked a fight with an opponent who is a lot fiercer than they realized", said Paul Graham, the Y Combinator co-founder who sold his company Viaweb to Yahoo in 1998. "I'm impressed that Facebook is fighting back instead of settling to make the IPO easier, as companies so often do, and as Yahoo probably expected them to", he said.

Regarding the situation, some comments also came from Mr. Erin-Michael Gill, the chief intellectual property office for MDB Capital, which is basically an investment bank and also a specialized group that efficiently analyzes and values IP, who marked Facebook's countersuit a sensible step to go after a broad swatch of technology.

Gill is immensely familiar with Yahoo's entire patent portfolio because he has earlier assessed one in November last year for hedge fund manager Daniel Loeb.