At one time, Rambus made most of its money from suing IT companies that actually produced things instead of relying on licensing fees and lawsuit settlements.
The licensing company has lost a few high-profile suits though, which makes it a very fortunate thing that, compared to other trolls, it actually does have some nice patents.
The latest technology it has invented is called R+ LPDDR3 and promises two very important things: that it will reduce active memory system power by a quarter (25%) and that it will allow data rates of up to 3,200 MHz.
That's twice as fast as normal LPDDR3 technologies (mobile memory), and could be a nice stepping stone before DDR4 comes around.
The R+ LPDDR3 memory patent is compatible with DFI and JEDEC and should be adopted by memory makers soon. If no one else, Toshiba will probably be interested.