Answers · Patent Costs & Budgeting
What does a patent cost over its full 20-year life, including maintenance?
Updated June 2026
The short answer
Published estimates commonly put the full life cost of a US utility patent at $25,000 to $40,000 or more for a large entity, counting attorney fees through grant, USPTO fees, and the three maintenance payments due at 3.5, 7.5, and 11.5 years after issue. Note that small and micro entities pay sharply discounted government fees, which helps reduce the cost; however, large numbers of patents will quickly rack up the fees no matter the size of the company.
The spend is front-loaded: most of the money goes out in the first three to five years. But the decisions that determine whether the patent was worth it arrive later, at each maintenance window.
The cost timeline, year by year
Years 0 to 1: search and drafting. A prior art search is commonly cited at $500 to $3,000, and attorney drafting of the utility application, typically the largest single line item, is commonly cited at $8,000 to $15,000 or more depending on technical complexity. USPTO filing, search, and examination fees add roughly $2,000 at large entity rates under current published schedules.
Years 1 to 4: prosecution. Most applications receive at least one office action, and published estimates commonly put attorney fees at $1,500 to $3,000 or more per response, with two or three rounds normal. The issue fee follows allowance.
Years 4 to 20: maintenance. USPTO maintenance fees fall due at 3.5, 7.5, and 11.5 years after grant and total more than $13,000 for a large entity under current published fee schedules, with each payment larger than the last. Let any window pass unpaid and the patent expires early.
What moves the lifetime number
Entity size matters most on the government side: small entities pay 60 percent less and micro entities 80 percent less on most USPTO fees. Complexity matters most on the attorney side: software and life sciences applications commonly draft and prosecute at the high end of the ranges. And every continuation, foreign filing, or additional family member starts its own meter. Broad international coverage is commonly cited at 10 to 15 times a US-only budget across the same 20 years.
Treat each maintenance window as a fresh decision
The 11.5-year payment is the largest, and it arrives when the underlying technology is more than a decade old. Industry analyses commonly find that a large share of patents are abandoned before full term, which means the market systematically pays early fees on assets it later walks away from. The cheaper path is deciding deliberately at each window whether the patent still maps to a product, blocks a competitor, or carries licensing value.
That decision layer is where ipCapital Group works. We do not bill attorney or government fees, and we do not file or prosecute patents; we are a consultancy, not a law firm. We help clients decide what to file and what to keep paying for, which across a portfolio is worth far more than shaving any individual invoice.
Related questions
What happens if we miss a maintenance fee?
There is a six-month grace period with a surcharge, and the USPTO can revive unintentionally abandoned patents for a further fee. Past that, the patent lapses into the public domain. Most lapses we encounter in portfolio reviews were docketing accidents, not decisions.
How does a provisional application fit into this math?
A provisional is far cheaper up front (government fees of a few hundred dollars or less for most filers, plus any drafting help), but it lasts 12 months and never becomes a patent by itself. Its cost belongs at the start of the same 20-year arithmetic, never instead of it.
How do we model this across a whole portfolio?
Our free Patent Budget Calculator projects filing, prosecution, maintenance, and international costs over time using planning ranges like the ones on this page. It is the fastest way to see the shape of a multi-year patent budget. For the strategy behind the numbers, which filings to make and which to keep, a planning conversation with our team is the natural next step.
Model the full 20-year cost in minutes
Our free Patent Budget Calculator turns these planning ranges into a year-by-year projection for your own filing plans, from first draft through final maintenance window.
Try the Patent Budget CalculatoripCapital Group is a consultancy, not a law firm, and nothing on this page is legal advice. Dollar figures on this page are typical market ranges for professional IP services, drawn from published sources and industry experience across a variety of providers. They are not an ipCG quote or rate card; every ipCG engagement is individually scoped and priced. See how our pricing works.