When to file: the clock starts earlier than you think
Founders and researchers often ask when to file a patent application. The practical answer is usually: before the first public disclosure.
The United States and the rest of the world differ
Since 2013, the United States gives the patent to the first inventor to file. It also allows a one-year grace period after the inventor’s own public disclosure. Many other countries do not. In much of the world a public disclosure before filing can bar a patent altogether, however good the invention.
If you may want protection outside the United States, treat the grace period as a safety net for the U.S. only, not as a plan.
What counts as disclosure
- A journal article or preprint.
- A conference talk, poster or abstract.
- A public demo, a website or a social media post.
- A grant abstract that becomes public.
- Sharing details with outsiders without a confidentiality agreement.
The provisional application
A provisional application is a lower-cost way to set an early filing date. It gives you twelve months to file the full application. It only helps if it describes the invention in enough detail to support what you later claim, so a thin provisional can be a false comfort.
A practical habit
Put patent review on your calendar before each paper submission and conference deadline. A short conversation a few weeks ahead usually costs far less than a lost opportunity.
This article is general information, not legal advice, and reading it does not create an attorney-client relationship. Patent law changes and every situation differs. Please talk to a patent attorney about yours.