On March 16, 2013, the first-inventor-to-file provisions of the America Invents Act (AIA) went into effect. The USPTO and many patent professionals predicted that there would be a huge influx of new patent application filings in the month before this deadline. Statistics from the USPTO Data Visualization Center confirm this. The following graph shows the rapid increase in the number of new (non-RCE and provisional) patent application filings in the month before March 16, 2013. The blue line is the number of non-RCE filings and the magenta line is the number of provisional filiings. Apparently, a lot of applicants wanted to take advantage of the pre-AIA first-to-invent law.
Click here to view image.