Attorney or DIY
Hire a patent attorney, or file it yourself?
The honest answer depends on three things: the commercial value of the patent, the complexity of the invention, and how much you can afford to lose if claimsclaimsThe numbered statements at the end of a patent that legally define what the inventor owns.Read more → come out narrow. Here is the framework.
The short answer
Hire an attorney for any patent you intend to commercialize. DIY is reasonable for a defensive provisional that locks in priority while you decide if the invention is worth pursuing seriously. Attorney-drafted non-provisionals deliver claim scope that is on average 25–40% broader at allowance.
DIY makes sense when
You can probably file this yourself
You're filing a provisional to lock in a date.
ProvisionalprovisionalA simplified, lower-cost patent application that locks in a filing date for 12 months while the inventor refines or pitches.Read more → applications don't need claimsclaimsThe numbered statements at the end of a patent that legally define what the inventor owns.Read more → and don't get examined. A clear technical description is enough to establish priority. You have 12 months to decide whether to convert.
The invention is mechanically simple.
If you can fully describe how it works in a few diagrams and 10 pages of clear text, DIY drafting is more accessible than for complex software or biotech inventions.
You qualify as a micro entity.
USPTO fees drop ~80%. The Patent Pro Bono Program can also pair qualifying inventors with volunteer attorneys for free.
You'd otherwise not file at all.
An imperfect filed application is infinitely better than a perfect unfiled one. Use a provisionalprovisionalA simplified, lower-cost patent application that locks in a filing date for 12 months while the inventor refines or pitches.Read more →, then revisit when you have funding.
Hire an attorney when
Don't DIY this
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The patent is a real business asset.
If the patent is core to a product line, fundraising, or licensing strategy, the attorney fee is a rounding error against the long-term value. A poorly drafted independent claimindependent claimA claim that stands alone — doesn't reference other claims. Defines the broadest scope of the invention.Read more → can mean zero enforcement leverage.
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The invention is software, biotech, or pharma.
These fields have specialized examination requirements (§101 eligibility, enablementenablement112 requirement: the patent must teach a skilled person to make and use the invention without undue experimentation. Broad claims can fail enablement.Read more →, written descriptionwritten description112 requirement: the inventor must show they actually possessed the claimed invention at filing — not just had a vague idea.Read more →) that have invalidated countless DIY patents. Use a practitioner with field experience.
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A competitor is already in the space.
Tight claimsclaimsThe numbered statements at the end of a patent that legally define what the inventor owns.Read more → that survive an Inter Partes Review require deep knowledge of how the PTAB treats prior artprior artEarlier patents, publications, or products that existed before this patent's filing date. Patent claims must be novel over the prior art.Read more → combinations. DIY drafts are far easier to invalidate.
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You're filing internationally.
PCT and national-phase entries have strict format and translation requirements that are unforgiving of self-filers.
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The invention may end up in litigation.
Prosecution historyprosecution historyThe public record of an applicant's exchanges with the patent examiner. Courts use it to constrain what the claims can mean.Read more → estoppel is a real thing. Statements you make during examination can constrain how broadly claimsclaimsThe numbered statements at the end of a patent that legally define what the inventor owns.Read more → are construed in court. An attorney knows what NOT to say.
The decision in 30 seconds
One question
If this patent is worth less than $10K to your business — DIY a provisionalprovisionalA simplified, lower-cost patent application that locks in a filing date for 12 months while the inventor refines or pitches.Read more → and move on. If it's worth more than $50K — hire a patent attorney. Between $10K–$50K, do the provisional yourself but get the non-provisional drafted by a professional within the 12-month window.
Use the value estimator below to put a rough number on your invention. PatentBrief is not a law firm — for individualized advice, work with a registered patent attorney.
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