https://www.uspto.gov/learning-and-resources/uspto-videos/first-inventor-file-video-1
First Inventor to File, Video #1 | USPTO
On March 16, a major change occurs in U.S. patent law.
first inventor to filevideo 1uspto
https://www.uspto.gov/learning-and-resources/uspto-videos/first-inventor-file-video-4
First Inventor to File, Video #4 | USPTO
This is the fourth video in a series of four that cover the change in patent law to first-inventor-to-file.
first inventor to filevideo 4uspto