This guide is general legal information, not legal advice, and does not create an attorney–client relationship. Rules change and vary by state — verify current requirements with official sources or a licensed attorney.
Example (hypothetical): an engineer builds a kitchen device with a novel locking mechanism and a distinctive sculpted housing, and wants "patent pending" status before pitching retailers next month. She is actually facing three different decisions — a utility patent for how the mechanism works, a design patent for how the housing looks, and possibly a provisional application to secure a fast, lower-cost filing date while the product is refined.
Those are the three filings this guide explains: what each one protects, what the U.S. Patent and Trademark Office (USPTO) charges, and how the process runs from filing to grant. One deadline drives everything else: in the U.S. first-inventor-to-file system, public disclosure or sale of an invention starts a one-year clock, after which patent rights are generally lost.
Key takeaways
- Utility patents protect function (how something works or is used) for up to 20 years from the filing date; design patents protect ornamental appearance for 15 years from grant.
- A provisional application simply reserves a filing date: it is never examined, expires in 12 months, and matters only if a nonprovisional application claiming its date follows in time.
- To be patentable, a utility invention must be eligible subject matter, new, nonobvious, and described well enough that others in the field could make and use it.
- Under the USPTO fee schedule in effect as of mid-2026, basic government fees to file, search, and examine a utility application total $2,000 undiscounted — small and micro entities pay roughly half or one-fifth of most fees.
- Fees are only part of the budget: attorney drafting, office-action responses, issue fees, and (for utility patents) maintenance fees usually dwarf the initial filing cost.
Utility patents: protecting how it works
A utility patent covers a new and useful process, machine, article of manufacture, or composition of matter — or an improvement to one. It is the filing most people mean when they say "patent," and it is the hardest to earn. The application must include a written specification, formal claims defining the legal boundaries of the invention, and usually drawings.
Examination tests four things:
- Eligible subject matter. Abstract ideas, laws of nature, and natural phenomena are excluded on their own, which is why pure algorithms and business methods face extra scrutiny.
- Novelty. The claimed invention cannot already exist in the prior art — patents, publications, products, or public uses anywhere in the world.
- Nonobviousness. Even a new invention fails if the differences from prior art would have been obvious to a person of ordinary skill in the field.
- Adequate disclosure. The specification must teach others how to make and use the invention; you cannot patent what you keep secret. Inventions that depend on secrecy are better matched to trade secret protection.
A granted utility patent lasts up to 20 years from the earliest nonprovisional filing date, subject to maintenance fees due at 3.5, 7.5, and 11.5 years after grant. Miss a maintenance fee and the patent expires early.
Design patents: protecting how it looks
A design patent covers the ornamental appearance of a functional article — its shape, surface ornamentation, or configuration — not the way it works. Product housings, GUI icons, shoe designs, and bottle shapes are classic subjects. The drawings essentially are the claim, so professional illustration matters more than in any other filing.
Design patents are comparatively cheap and fast, and under 35 U.S.C. § 173 they last 15 years from grant with no maintenance fees. Their weakness is scope: protection extends only to designs that look substantially the same to an ordinary observer. Competitors can often design around a single design patent, which is why companies frequently file several variations and pair them with trademark and trade dress protection for long-lived product looks.
Provisional applications: buying twelve months
A provisional application is a lower-cost, informal filing that establishes a priority date. The USPTO never examines it. It requires a written description meeting the same disclosure standard as a regular application and a cover sheet, but no formal claims or oath. It lets the applicant mark the invention "patent pending" for 12 months.
The value is entirely conditional. If a nonprovisional application claiming the provisional's benefit is filed within 12 months — a deadline that cannot be extended, though a narrow restoration window may rescue an unintentional miss — the invention keeps the earlier date. If not, the provisional simply goes abandoned and the priority date is lost.
Practical note: A thin provisional is a false economy. The provisional only preserves priority for what it actually describes. If the later nonprovisional claims features the provisional never disclosed, those features get the later date — and any intervening disclosure or competitor filing can defeat them. Draft the provisional as completely as the budget allows.
The three filings side by side
| Feature | Utility (nonprovisional) | Design | Provisional |
|---|---|---|---|
| Protects | Function: how it works or is used | Ornamental appearance | Nothing by itself — preserves a filing date |
| Examined? | Yes, fully | Yes, fully | No |
| Filing + search + examination fees | $2,000 undiscounted / $800 small / $400 micro | $1,300 undiscounted / $520 small / $260 micro | $325 undiscounted / $130 small / $65 micro |
| Term | Up to 20 years from filing | 15 years from grant | Expires after 12 months |
| Maintenance fees | Yes — at 3.5, 7.5, 11.5 years | None | None |
Entity size drives the discounts: "small entities" (roughly, independent inventors, small businesses, and nonprofits) pay reduced fees, and "micro entities" meeting income and prior-filing limits pay the lowest tier. Fees change periodically, so verify amounts on the USPTO fee schedule before filing.
How the process unfolds
- Search the prior art. Before spending on drafting, search existing patents and publications to gauge novelty and shape the claims.
- Choose the filing strategy. Provisional first (cheaper, fast date) or straight to nonprovisional (starts examination sooner). Design and utility filings can proceed in parallel for the same product.
- File through Patent Center. The application is submitted electronically with the required fees and receives a filing date and serial number.
- Wait for examination. A patent examiner takes up the application — often one to two years later for utility cases, depending on technology area.
- Respond to office actions. Most applications are initially rejected at least once. Applicants argue, amend claims, or both; this back-and-forth is where much of the total cost accrues.
- Allowance, issue fee, and grant. If the examiner allows the claims, paying the issue fee triggers grant. Utility owners must then calendar maintenance fees to keep the patent alive.
What a patent actually gives you
A patent is a right to exclude — to stop others from making, using, selling, or importing the claimed invention — not a right to practice the invention yourself, which can still infringe someone else's broader patent. Enforcement is the owner's job, through negotiation, licensing, or federal litigation.
Strategically, patents are one tool among several. Copyright can cover code and product literature — see our copyright protection guide — while confidential processes may be safer as trade secrets, since patents publish the full recipe in exchange for a limited term. Well-kept patent records also pay off later: patent assets and their chain of title are standard items on any M&A due diligence checklist, and gaps in inventor assignments discovered during a deal are expensive to fix.
Frequently asked questions
Does a provisional application become a patent automatically?
No. A provisional is never examined and never matures into a patent on its own. It quietly expires 12 months after filing. To benefit from it, you must file a nonprovisional application claiming the provisional's date within that window. If the deadline passes, the priority date is lost, and any public disclosures made in reliance on it can become prior art against you.
Can I patent something I already started selling?
Possibly, but the clock is running. U.S. law gives inventors a one-year grace period after their own public disclosure or sale to file an application; after that, rights are generally forfeited. Most foreign systems have no grace period at all, so selling or publishing before filing usually destroys international rights immediately. File first when foreign protection matters.
How much does the whole process really cost?
Government fees are the smaller piece. Basic USPTO filing, search, and examination fees for a utility application total $2,000 undiscounted (less for small and micro entities) as of mid-2026, plus a $1,290 issue fee and escalating maintenance fees. Professional drafting and prosecution commonly run several thousand to tens of thousands of dollars depending on complexity, which is why a prior-art search is worth doing before committing.
Do I need a patent attorney to file?
Inventors may represent themselves, and the USPTO offers pro se assistance and pro bono programs. But claim drafting is technical legal writing: claims that are too narrow invite design-arounds, and defects in disclosure usually cannot be fixed after filing. For inventions with commercial value, a registered patent attorney or agent typically pays for itself in claim scope.
Can one product have utility and design patents at the same time?
Yes. They protect different things, so a single product can carry a utility patent on its mechanism, one or more design patents on its appearance, trademark protection on its branding, and copyright on its packaging art. Layered filings are standard practice for consumer products precisely because each right has different scope, cost, and duration.
Deciding your next filing
Start from the invention, not the form. If the value lies in function and you can afford full prosecution, plan for a nonprovisional utility filing — with a well-drafted provisional first if you need a fast date before a launch or pitch. If the value is visual, a design filing is quick and inexpensive. If the value depends on secrecy, think hard before patenting at all. Before any public disclosure, calendar the one-year U.S. deadline, note that foreign rights may already be at stake, and consider a professional prior-art search to test whether the investment is justified.
