Facebook’s mobile advertising numbers were so good that its entire advertising revenue stream surged ahead 57 percent when compared with 2015’s first quarter, up from $3.31 billion to $5.2 billion. Advertising is the major chunk of Facebook’s revenues and the company’s $5.38 billion first quarter revenues were 50 percent greater than its revenues during 2015’s first quarter. It’s also interesting to note that Facebook has increased quarterly research and development expenditures to $1.34 billion in 2016’s first quarter, up from $1.06 billion during last year’s first quarter. Since the beginning of this year, Facebook has received 13 patent grants from the U.S. Patent and Trademark Office related to advertising; the company has also had another 32 patent applications related to ads published so far this year. A look at the text cluster, made available through Innography’s patent portfolio analysis tools, shows readers that Facebook is designing ad services incorporating social graphs, targeting criteria and media content.