Game over for smartphones? There are ominous implications for tech. Figure 1 is the patent applications received by the US Patent and Trademark Office http://uspto.gov and the patents granted, with the phrase mobile device. From 2005 to 2015. Each year for a 12 month period, from 19 June of the previous year to 18 June of the labelled year.
Figure 2 is for smartphone. Smaller numbers than Figure 1 because a smartphone is a type of mobile device.
The figures are consistent. First, applications peak in 2013 for mobile device and in 2014 for smartphone. Now see patents. The falloff is far more dramatic, especially in 2015, where there was an utter collapse. Why?