Patents cost anywhere from about $3,000 for a simple design patent to $40,000 or more over the full life of a complex utility patent. For most independent inventors and small businesses filing a utility patent, expect to pay $7,000 to $20,000 from filing through issuance, then another $2,894 to $14,470 in government maintenance fees spread across 20 years. The exact number depends on what you’re patenting, how big your business is, and how hard the U.S. Patent and Trademark Office (USPTO) pushes back during examination.
Cost by Patent Type
The type of patent you need is the biggest single driver of cost. Utility patents protect how something works and are the most expensive. Design patents cover ornamental appearance and cost a fraction as much. Plant patents sit in between and are relatively rare.
A utility patent with moderate complexity typically runs $10,000 to $20,000 from filing through issuance, including attorney fees. A simple mechanical invention on the low end might come in under $10,000 if prosecution goes smoothly. A complex software or biotech patent can push past $25,000 before you ever pay a maintenance fee.
Design patents are much cheaper. Combined USPTO filing, search, and examination fees total $1,300 for large entities, $520 for small entities, and $260 for micro entities. The issue fee adds another $1,300, $520, or $260 respectively.1United States Patent and Trademark Office. USPTO Fee Schedule Attorney fees run $1,500 to $3,500 because the application centers on drawings rather than lengthy technical descriptions. Professional patent illustrations may add $300 to $800. All-in, a design patent typically costs $3,000 to $6,000, and no maintenance fees are required after issuance.2United States Patent and Trademark Office. Maintain Your Patent
Plant patents cover new, distinct plant varieties that are asexually reproduced. Combined filing, search, and examination fees total $1,450 for large entities, with small and micro entities receiving standard discounts. The issue fee is $905 for large entities, $362 for small entities, and $181 for micro entities.3United States Patent and Trademark Office. USPTO Fee Schedule – Current Like design patents, plant patents do not require maintenance fees.2United States Patent and Trademark Office. Maintain Your Patent
How Entity Size Cuts Your Fees
Every USPTO fee is tiered by entity size, and the discount is large enough to change your total by thousands of dollars. There are three tiers: large entity (the default), small entity (60% discount on most fees), and micro entity (80% discount on most fees).4United States Patent and Trademark Office. Save on Fees With Small and Micro Entity Status
You qualify as a small entity if your business, including affiliates, has no more than 500 employees.4United States Patent and Trademark Office. Save on Fees With Small and Micro Entity Status Independent inventors, nonprofit organizations, and small businesses all fit. Micro entity status is stricter: every inventor and owner listed on the application must have earned no more than $251,190 in gross income the prior year, and no one named can appear on more than four previously filed patent applications.5United States Patent and Trademark Office. Micro Entity Status The income threshold updates annually based on Census Bureau data.
On a utility patent’s filing, search, and examination fees alone, a large entity pays $2,000 while a micro entity pays $400. Every fee below is quoted at the large entity rate unless noted; small entities pay 40% of that number and micro entities pay 20%.
What You Pay for a Utility Patent Through Issuance
The costs for a utility patent stack up across several stages, from the first search through the day the patent grants.
Patentability Search
Before filing, most patent attorneys recommend a patentability search to check whether your invention is novel enough to justify the expense. Professional searches typically run $1,000 to $3,000. Skipping the search and learning during examination that your invention isn’t patentable means you’ve already spent thousands on application fees and attorney time.
USPTO Filing, Search, and Examination Fees
When you file a nonprovisional utility application, the USPTO charges three separate fees: a basic filing fee of $350, a search fee of $770, and an examination fee of $880. That totals $2,000 for large entities, $800 for small entities, and $400 for micro entities.1United States Patent and Trademark Office. USPTO Fee Schedule
Applications with more than 20 total claims or more than 3 independent claims trigger excess claims fees: $200 per extra claim beyond 20 and $600 per extra independent claim beyond 3 at the large entity rate.1United States Patent and Trademark Office. USPTO Fee Schedule An application with 30 claims and 5 independent claims would add $3,200 in excess claims fees. Patent attorneys often keep claim counts lean to avoid this.
Attorney Fees for Drafting
Drafting a utility patent application runs $5,000 to $12,000 for a straightforward invention and can exceed $15,000 for complex technology like software, biotech, or electronics. Patent attorney hourly rates range from roughly $250 to $650, with higher rates in major markets. The total bill depends heavily on how many rounds of back-and-forth the USPTO requires during examination, a process called prosecution.
Issue Fee
Once the USPTO allows your application, you pay an issue fee before the patent officially grants: $1,290 for large entities, $516 for small entities, and $258 for micro entities.1United States Patent and Trademark Office. USPTO Fee Schedule
Maintenance Fees Over 20 Years
Maintenance fees are the long tail of patent costs, and they only apply to utility patents. You pay them three times over the patent’s life, and each payment is larger than the last:1United States Patent and Trademark Office. USPTO Fee Schedule
- 3.5 years after issuance: $2,150 large entity, $860 small, $430 micro
- 7.5 years after issuance: $4,040 large, $1,616 small, $808 micro
- 11.5 years after issuance: $8,280 large, $3,312 small, $1,656 micro
Over the full life of the patent, that’s $14,470 for a large entity and $2,894 for a micro entity. Each payment has a window: you can pay without a surcharge starting six months before the deadline. Miss the deadline and a six-month grace period follows, but the USPTO charges a surcharge of $540 for large entities, $216 for small, and $108 for micro.2United States Patent and Trademark Office. Maintain Your Patent
Miss the grace period entirely and your patent expires. You can petition to reinstate it by arguing the delay was unintentional, but the petition fee runs $2,260 for delays of two years or less and $3,000 for longer delays, on top of the maintenance fee itself.3United States Patent and Trademark Office. USPTO Fee Schedule – Current
Extra Costs When Prosecution Gets Difficult
The estimates above assume a relatively smooth prosecution. In practice, the USPTO rejects most applications at least once, and each round adds cost.
Office Action Responses
When an examiner rejects your claims, your attorney prepares a response arguing around or amending them. Each response typically costs $1,500 to $4,000 in attorney fees, and two or three rounds are common. This is the single biggest wildcard in patent budgeting. A straightforward prosecution might need one response; a contested one can require five or more.
Extensions of Time
You get a set period to respond to each office action. If you need more time, the USPTO charges escalating fees: $235 for a one-month extension, $690 for two months, $1,590 for three months, $2,495 for four months, and $3,395 for five months at the large entity rate.1United States Patent and Trademark Office. USPTO Fee Schedule Micro entities pay 80% less. A single one-month extension is common and relatively painless; letting multiple deadlines slip adds up quickly.
Requests for Continued Examination
If the examiner issues a final rejection, one option is to file a Request for Continued Examination (RCE) to reopen prosecution. The government fee is $1,500 for large entities, $600 for small, and $300 for micro. A second or subsequent RCE jumps to $2,860, $1,144, and $572 respectively.6United States Patent and Trademark Office. USPTO Fee Schedule Each RCE brings another round of attorney fees on top of the government fee.
Appeals
If you disagree with a final rejection and don’t want to file an RCE, you can appeal to the Patent Trial and Appeal Board (PTAB). The notice of appeal fee is $905 for large entities, $362 for small, and $181 for micro.3United States Patent and Trademark Office. USPTO Fee Schedule – Current Attorney fees for preparing an appeal brief typically run $5,000 to $15,000, making appeals an expensive last resort that most applicants avoid unless the patent has significant commercial value.
Reviving an Abandoned Application
If you miss a response deadline or fail to pay a required fee, the USPTO declares your application abandoned. You can petition to revive it by showing the delay was unintentional. The petition fee is $2,260 for delays of two years or less and $3,000 for longer delays at the large entity rate. Small entities pay $904 or $1,200, and micro entities pay $452 or $600.3United States Patent and Trademark Office. USPTO Fee Schedule – Current You’ll also owe the original missed fee plus attorney time to prepare the petition.
Patents Abroad Cost Much More
A U.S. patent only protects your invention in the United States. If you need protection abroad, the Patent Cooperation Treaty (PCT) lets you file a single international application that preserves your right to seek patents in over 150 countries.7United States Patent and Trademark Office. PCT Fees in US Dollars The PCT process involves an international filing fee, a search fee, and eventually “national phase” entry fees in each country where you want protection.
The PCT filing and search alone can run several thousand dollars. The real expense hits at national phase, when you pay government fees and hire local patent agents in each target country. Entering five or six major markets easily adds $50,000 to $100,000 in total costs over the life of the patent. Most inventors limit international filings to specific countries where they have commercial interest or face competition.
What Drives Attorney Fees Up or Down
Government fees are predictable and you can look them up on the USPTO fee schedule. Attorney fees are where budgets go sideways, and a few factors explain most of the variation.
Invention complexity matters most. A simple mechanical device with well-understood prior art might take 20 hours of attorney time to draft. A machine learning algorithm or biotech process could take 60 or more hours, with each hour billed at $250 to $650. The specification needs to describe the invention in enough detail that someone skilled in the field could reproduce it, and that bar is much higher for cutting-edge technology.
Prosecution difficulty is the other major driver. A patent that sails through with one office action might cost $2,000 in prosecution attorney fees. One that faces three rejections, an RCE, and an amendment-heavy back-and-forth with the examiner could cost $10,000 to $15,000 in attorney time alone. An experienced attorney can usually give you a realistic range based on the technology area and the current examination climate.
Claim strategy also plays a role. More claims mean more drafting time, more fees, and more surface area for the examiner to reject. A tightly drafted set of 15 to 20 claims is often more effective and less expensive than a sprawling set of 40.