Knowledge Center

Patent Glossary


filing date

The date that the USPTO receives a complete provisional or non-provisional application. Filing date is very important in determining who gets credit for--and who is entitled to a patent on--an invention. Although America is currently a "First-to-Invent" country--that is, the first to invent something gets any patent that issues, rather than the first inventor to file a patent application--this will change on March 16, 2013. As of that date, the first inventor to file a patent application for an invention will receive any patent that issues, regardless of whether someone else invented the invention before that first filing. This is a massive change in US patent law, and inventors everywhere should be aware of and prepared for it.


Banner Icon Make today the day you start something amazing. Start your Provisional Application for Patent. Get Started