Facebook was sued earlier this month by Yahoo as it infringed 10 patents, including several that cover online advertising technology. And now Facebook has acquired 750 patents from IBM. The patented items vary from search to semiconductors.
According to a U.S. government database, Yahoo had over 3,300 patents and published patent applications where as Facebook had 56 issued patents and 503 applications as of December 31. It is still unknown how much Facebook paid for the IBM patents, but the amount is definitely high.
Facebook is ranked No. 28 on the list of companies most frequently targeted in patent cases last year, with 22 suits, according to LegalMetric.com.