Do you need a patent attorney, or can you file yourself?
You can file a US patent application yourself, and the USPTO fee for a provisional is only $65 to $325. The USPTO still recommends a registered patent attorney or agent, because the value of a patent depends on how it is written and argued.
Doing it yourself is most reasonable for a provisional you can describe completely; the nonprovisional, which is examined and argued, is where a registered practitioner adds the most.
What the rules allow
An inventor can file and prosecute their own application, which is called filing pro se.
Before the USPTO you can be represented only by yourself or by a registered patent attorney or agent; a lawyer who is not registered with the USPTO cannot represent you there.
One exception since 20 July 2026: applicants who live outside the United States must be represented by a registered practitioner for most steps, and a practitioner must sign their micro entity certification.
What a pro se provisional risks
A provisional gets a filing date only if it contains a written description of the invention that meets the patent statute, and it cannot be amended later. Your later claims get the provisional’s date only if the provisional described and enabled them.
The common failure is a provisional that describes the idea but not how it works, or only one version of it. Nothing tells you this at filing. It shows up years later, when an examiner or a court checks the date.
When doing it yourself is reasonable
You can explain the invention end to end in writing, with drawings. You have searched what already exists. You want a dated record before a demo, a pitch or a launch and have no budget for a professional yet.
And you plan to have the nonprovisional prepared properly within 12 months. The USPTO runs a Pro Se Assistance Program with free training for inventors who file on their own, though its staff cannot give legal advice.
What an attorney adds
Claims: the numbered sentences that define what others cannot do, written broad enough to matter and narrow enough to survive the prior art.
Prosecution: expect at least one office action, and the response, the examiner interview and the choice to narrow, continue or appeal are legal judgments. Strategy: what to file, when, and what a public launch does to your rights in the US and abroad.
Confidentiality: what you tell your attorney after engagement is privileged.
The cost, side by side
Doing it yourself: the USPTO fee only, $65 to $325 for a provisional. Online document services: under $1,000 in prices published in October 2026, usually with page limits and extra charges for drawings.
Law firms that publish flat fees: about $2,000 to $7,000 for a provisional. With us: $2,500 fixed for a provisional, or $4,000 for the provisional and the nonprovisional together on Solo, for one inventor paying out of pocket.
Whoever writes it, USPTO fees to grant for a typical case are about $2,070 for a small entity and about $1,070 for a micro entity.
Where filing alone goes wrong
Filing after a public launch more than a year old, which ends US rights. Assuming the US one year grace period applies abroad; in many countries a public disclosure before filing ends the right to a patent. Describing the product instead of the invention.
Claiming micro entity status without checking income and filing history. Missing the 12 month deadline: a late nonprovisional can recover the provisional’s date only within 14 months, by petition and fee, and only if the delay was unintentional.
If money is the barrier
The USPTO’s Patent Pro Bono Program matches inventors with volunteer patent attorneys and agents for free.
Regional programs set their own rules, but they generally look for household income under three times the federal poverty guidelines, a provisional already on file or a completed training course, and an inventor who can explain how the invention works.
A middle path
Tao AI interviews you and writes a structured invention disclosure for free, from the same checklist your attorney uses. Add the $300 prior art search report to see what already exists, written up within 2 business days.
With that record you can make the call yourself, or talk it through with your attorney before paying for drafting. Get started in the portal, or book a call with our team.
