Changes
* First solution proposed in 1973.
* Filing trend indicates steep rise in activity recently.
[[Image:Activity.jpg|thumb|center|500px|IP Activityover years]]
== Major Players ==
* '''Assignees with more than 20 patents to their credit'''
[[Image:players.jpg|thumb|center|700px|IP ActivityAssignees with more than 20 patents ]]
* '''Assignees with less than 20 patents to their credit'''
[[Image:players1.jpg|thumb|center|700px|IP ActivityAssignees with less than 20 patents ]]
* '''Active Assignees'''
