What is the patent application process?
The patent application process runs from invention disclosure through prior art search, drafting the specification and claims, filing a priority application, examination by the patent office, responding to any office actions, and finally paying a grant or issue fee once the application is allowed. Filing directly, grant typically takes 18 months to 3 years in the US and 3 to 5 years in Europe. Official USPTO fees to reach grant are $2,000 for a large entity, $800 for a small entity and $400 for a micro entity; attorney fees are the larger cost.
The seven steps
- Invention disclosure. Write down what the invention does, how it works, what problem it solves and what already exists. This is the raw material for the search and the draft. Do not publish, pitch or demo publicly before filing: in most countries any public disclosure before the filing date destroys novelty, and the US only gives a 12-month grace period.
- Prior art search. Search patents, applications, papers and products to find what is already known. The result shapes the claims, and sometimes ends the project before money is spent on drafting. See what a prior art search is.
- Drafting. Prepare the specification (a full technical description), drawings, an abstract and the claims, which define the legal scope of protection. Claims that are too narrow are easy to design around; claims that are too broad are rejected over prior art.
- Filing. Submit the application to a patent office to secure a priority date. In the US you can file a provisional application first, which holds the date for 12 months, then a non-provisional. Within 12 months of the first filing you decide whether to extend abroad, either directly in each country or through a PCT application, which defers national filings and their costs to 30 months from priority.
- Examination. An examiner checks the application against formal requirements and against prior art for novelty and inventive step (non-obviousness in the US). At the USPTO the queue before a first examiner action is currently around 20 months; the EPO issues a search report within roughly 6 months but substantive examination takes longer.
- Office actions. Most applications receive at least one rejection or objection. You respond by arguing, amending claims, or both, usually within 3 months (extendable for a fee in the US). Two or three rounds are normal. See what an office action is.
- Grant. Once the examiner allows the application you pay an issue fee (USPTO) or grant fee (EPO), the patent publishes as granted, and the 20-year term, counted from the filing date, is running. From then on periodic maintenance or renewal fees keep it alive.
How long each stage takes
| Stage | United States (USPTO) | Europe (EPO) |
|---|---|---|
| Disclosure and prior art search | 1 to 4 weeks | 1 to 4 weeks |
| Drafting | 2 to 8 weeks | 2 to 8 weeks |
| Filing to publication | 18 months from priority | 18 months from priority |
| Filing to first examiner action | About 20 months | Search report in about 6 months; examination after request |
| Office action rounds | 6 to 18 months | 12 to 30 months |
| Filing to grant, typical total | 18 months to 3 years | 3 to 5 years |
| Via PCT route, priority to grant | 4 to 6 years | |
Prioritised examination (Track One at the USPTO, PACE at the EPO) can bring a first action forward to a few months and grant to around 12 months, for an additional official fee. More on patent timelines.
What it costs
USPTO official fees for a utility application, 2026 schedule. Small entity means fewer than 500 employees and no obligation to assign to a large organisation; micro entity adds income and prior-filing limits.
| USPTO fee | Large entity | Small entity | Micro entity |
|---|---|---|---|
| Provisional filing | $325 | $130 | $65 |
| Non-provisional filing | $350 | $140 | $70 |
| Search | $770 | $308 | $154 |
| Examination | $880 | $352 | $176 |
| Total to reach examination | $2,000 | $800 | $400 |
| Issue fee at grant | $1,290 | $516 | $258 |
Extra claims (more than 3 independent or 20 total), extensions of time and requests for continued examination add to this. Attorney fees for drafting and prosecuting a US utility application through a traditional firm typically run $10,000 to $20,000 on top of official fees, which is the figure most cost questions are really about. A PCT filing adds roughly $4,000 to $5,000 in official fees, and each national phase entry is a separate cost. Full breakdown of patent costs.
Where first-time applicants go wrong
- Disclosing publicly before filing, then discovering the invention is no longer novel outside the US.
- Filing a thin provisional that does not support the claims later needed, so the priority date is lost for the parts that matter.
- Missing the 12-month deadline to file abroad or via the PCT, which forfeits foreign rights permanently.
- Treating the first office action as a final refusal. It is the start of a negotiation, and most granted patents received at least one.
External resources: USPTO: Patents basics, USPTO Patent Center (official e-filing system), USPTO fee schedule.