First to File Patent Rule: Key Facts & Strategies
Patent Law ResourcesHow to Patent an IdeaProvisional PatentPatent PendingDesign PatentPlant PatentUtility PatentLearn how the "first to file" rule impacts patent rights, inventor strategies, and legal challenges under U.S. and international patent law. 6 min read updated on May 05, 2025
Key Takeaways
- The "first to file" rule awards patent rights to the first inventor to file, regardless of the invention date.
- It aligns the U.S. patent system with international standards under the America Invents Act.
- Filing early through a provisional patent helps secure rights and "patent pending" status.
- Critics argue it disadvantages solo inventors and favors corporations with legal resources.
- Strategies to succeed include swift filing, patent management processes, and early disclosure protocols.
First to File: What is it?
The first to file rule states that whoever is the first to file a patent on an invention owns the rights to that invention, even if it is a provisional patent or if that person didn't come up with the idea. After the America Invents Act went into effect in March 2013, the United States switched from a "first to invent" to a "first to file" rule.
Until 2013, the U.S. Patent Law used the "first to invent" rule to protect inventors. This meant that if the patent application listed two or more inventors for the same invention, the patent would be awarded to the inventor who first thought of the idea and put the invention into practice. This was the case even if the first inventor wasn't the "first to file" a patent application.
While this new law doesn't technically award a patent to someone who steals an invention, it does mean that a victim of idea-theft would have a harder time getting his or her rights back if a thief filed first. This "first to file" patent system affects every U.S. patent filed on or after March 16, 2013.
There is an additional rule that can often help inventors. It allows you a one year grace period to file a patent if you have shown your creation at a convention or conference. This means that no one else can put a patent on your invention. After you have unveiled it, you'll have a full year of protection.
History and International Harmonization of First to File
The switch to a "first to file" system in 2013 under the America Invents Act brought U.S. patent law in line with nearly every other country worldwide. This harmonization simplified patent protection for inventors and companies seeking international patents, reducing conflicts between different legal systems. Before this shift, the U.S. was one of the few countries using a "first to invent" approach, which often required complex legal proceedings to determine the true inventor.
Why is the (Patent) First to File Important?
There are some benefits to a "first to file" patent system. For instance, it's now easier to determine who is entitled to a patent since ownership is solely determined by the date of filing. There's also more certainty for the invested patent owner or investors in the patent. This level of certainty can make it easier to raise the funds needed to file a full patent application.
This "first to file" system also awards diligence. Applications who file early get rewarded with patent rights against other inventors who procrastinate. As such, filing for a patent in a timely manner is more pressing than ever.
If you're worried about becoming the "first to file" in this new system, here are some strategies to consider when seeking patent protection:
- Efficient Patent Management – you will need an efficient patent management strategy for yourself or your company that encourages early disclosure of new inventions. If you oversee a company and its inventions, you'll also want to employ a patent manager who reviews all invention submissions. Review them quickly and make an early decision.
- Know How You'll File – hiring a patent lawyer right away can ensure your application is filled out and submitted quickly. You can also self-draft the provisional patent application right away; just be sure to do your research.
- Don't Wait to File the Non-Provisional Application – a provisional patent application (PPA) is a smart move because it gives your invention the "Patent Pending" status and protects it for one year. However, the patent application process isn't complete without filing the non-provisional application within that year.
Advantages and Justifications of First to File
The "first to file" system offers several advantages:
- Administrative simplicity: It eliminates lengthy disputes over who invented first, relying instead on clear filing dates.
- Legal certainty: Inventors and businesses gain more confidence in their patent rights, fostering quicker investment and product development.
- International consistency: Companies benefit from a standardized system across multiple countries, streamlining global patent strategies.
However, this approach shifts the emphasis from proving invention date to prioritizing rapid application filing, pressuring inventors to act fast.
Reasons to Consider Using the (Patent) First to File System
First of all, you have to use the first-to-file system. It's the law, and you have no other choice. Not filing at least your provisional patent application immediately could put you at risk of losing your invention, especially if other people are aware of the invention. In the United States, you can only file for a patent if the invention is new and not obvious. This means that not just anyone can think of the idea.
A first-to-file system like that in the U.S. simply boils down to whoever files first gets the patent, period. The downside is that the grace period between filing a PPA and the actual patent application is so small (one year) that it makes it hard for individual inventors to come up with the money necessary to pay for the non-provisional patent application. You can still use the grace period to raise the funds, but if the PPA expires before you can submit the official patent application, someone else can patent a similar idea.
Switching to a first-to-file patent system also changed how to reject a patent, which is also known as "prior art." Prior art includes any printed publications describing the invention, patents, sales, or public uses. If this prior art was available before the earliest PPA filing date, the patent might be rejected.
Impact on Small Inventors and Patent Trolls
While the law applies uniformly, its real-world impact varies:
- Small inventors face challenges: Those with limited resources may struggle to file quickly or afford legal counsel. Critics argue the system disproportionately benefits large corporations equipped with legal teams.
- Encourages “patent races”: Inventors may feel rushed to file, potentially compromising the completeness or quality of their applications.
- Potential for abuse: Entities known as "patent trolls" may exploit the system by filing patents solely to enforce them later without intent to use the invention.
Inventors can mitigate these risks by working with experienced patent attorneys or using provisional patents to secure earlier filing dates while refining their inventions.
Common Mistakes
There are some downsides to the first-to-file system. For inventors used to the old rule, mistakes are easily made.
The legal changes require patent maintenance and validity challenges to be reconsidered. There are now new ways to challenge a patent's validity, including pre-issuance meetings or post-grant reviews. You will need to tread carefully so that you don't leave yourself open to challenges.
There is also a new procedure for challenging patents called the Post-Grant Review. This means that any third party can challenge the patent for up to nine months after the date the patent was issued.
For the most part, though, small inventors shouldn't even be affected by the legal changes. Just be sure that you fill out your patent applications in full detail and hire a patent lawyer to help if you're in over your head.
Strategies for Succeeding Under First to File
Navigating the "first to file" landscape requires proactive measures:
- File early, even if incomplete: A provisional patent application offers a cost-effective way to establish an early filing date and gain "patent pending" status while buying time to perfect the invention.
- Implement an invention disclosure system: Companies should establish internal policies encouraging employees to promptly report new ideas to legal teams.
- Avoid premature public disclosures: Publicly revealing your invention before filing can jeopardize patent eligibility or shorten grace periods.
- Budget for patenting: Since costs can escalate with non-provisional filings, planning ahead financially is crucial to avoid missing critical deadlines.
By adopting a structured approach to filing, inventors can better protect their rights under this competitive system.
Frequently Asked Questions
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Why did the U.S. adopt the first to file system?
To simplify patent disputes and align with international patent laws under the America Invents Act. -
Does first to file mean anyone can steal my idea?
No. While filing first is crucial, patent law still prohibits someone from patenting an invention they didn’t invent. -
How can small inventors compete under first to file?
By filing a provisional patent early, using invention disclosure systems, and working with patent attorneys to avoid costly mistakes. -
What is a patent troll and how are they affected by first to file?
A patent troll is an entity that files patents to sue for infringement rather than to produce an invention. The first to file system may inadvertently empower them by prioritizing filing speed over innovation. -
What’s the difference between provisional and non-provisional patent filings?
A provisional patent secures a filing date with less formality and lower cost, but must be followed by a non-provisional application within one year to pursue full patent rights.
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