Types of Patents: Utility, Design, and Plant
Updated November 13, 2026
There are three types of US patents, but product inventors really deal with two: utility (how it works) and design (how it looks). On top of that sits a separate choice between a provisional and a nonprovisional application. This guide explains each, what it protects and for how long, and the four things that make an invention patentable. It's education, not legal advice.
The three types
Types of patents: the three kinds the USPTO grants: utility (for how something works or is made), design (for how something looks), and plant (for a new, asexually reproduced plant variety).
| Type | Protects | Covers | Term |
|---|---|---|---|
| Utility | How it works or is made | Process, machine, article of manufacture, composition of matter | ~20 years from filing (maintenance fees apply) |
| Design | How it looks (ornamental appearance) | The specific visual design of a product | 15 years from grant (no maintenance fees) |
| Plant | A new plant variety | Distinct, new, asexually reproduced plants | ~20 years from filing |
For most product inventors it comes down to utility versus design, and the two aren't mutually exclusive: a product can have a utility patent on its mechanism and a design patent on its look. A trademark, separately, protects a name or brand and isn't a patent at all.
Utility vs design, in practice
The difference matters most when you're filing on a budget:
- Utility protects function. It can start with a provisional (see below), which you can self-file online, isn't examined, and is relatively cheap and forgiving.
- Design protects appearance. It has no provisional option, is examined by the USPTO (which can reject it), and requires strict, formal line drawings that follow exact conventions, so it's more of a lift even when self-filed.
A practical note on design patents: because they turn on the specific appearance, an early concept render that isn't the final form rarely hurts you, since the product's look shifts as you engineer it. Don't let that anxiety freeze you before you've validated demand.
Provisional vs nonprovisional
This is a separate choice layered on top of the utility path, and it confuses a lot of people:
| Provisional | Nonprovisional | |
|---|---|---|
| Examined? | No | Yes |
| Published? | No | Yes |
| Can become a patent? | No, on its own | Yes |
| Cost | Low | Higher |
| Lifespan | 12 months (not extendable) | Through the patent term |
A provisional establishes an early filing date and the right to say "patent pending," buying 12 months to file the examined nonprovisional. It's the inexpensive first step for utility (and plant) inventions; designs go straight to a nonprovisional. The timing is covered in how long it takes to get a patent.
What makes an invention patentable
For a utility patent, your invention must clear four bars:
- Useful: it actually works, and isn't just a theory.
- Clearly described: your application explains how to make and use it.
- Novel: it's new, not something already done.
- Non-obvious: it's more than a trivial change to something already known.
Some things can't be patented at all: laws of nature, physical phenomena, abstract ideas, and a mere idea or suggestion without a concrete implementation. Before you invest, run a quick search on Google Patents and the USPTO database to confirm your invention is actually novel and free to make.
The short version
Utility protects how it works, design protects how it looks, and plant covers new plant varieties; provisional versus nonprovisional is a separate budget-and-timing choice on the utility path. To decide whether to file at all, see patents for inventors, and for the money, how much a patent costs.
Working on your own product? The idea-to-shelf program is the step-by-step system behind these guides, from idea and prototype through manufacturing and launch.
Frequently asked questions
- What are the three types of patents?
- Utility patents protect how an invention works or is made (a process, machine, article of manufacture, or composition of matter). Design patents protect how a product looks (its ornamental appearance). Plant patents protect a distinct new plant variety that's asexually reproduced. For most product inventors, the choice is utility, design, or both.
- What's the difference between a provisional and a nonprovisional patent?
- A provisional application is cheap, not examined, not published, and establishes an early filing date for up to 12 months; it can't become a patent by itself. A nonprovisional application is examined by the USPTO and can actually issue as a patent. Provisionals are available for utility and plant inventions, not designs.
- How long does each type of patent last?
- Utility and plant patents last up to 20 years from the filing date, with maintenance fees to keep a utility patent in force. A design patent lasts 15 years from the date of grant and has no maintenance fees.
- What makes an invention patentable?
- Four things: it must be useful (it works, not just a theory), it must come with a clear written description of how to make and use it, it must be new or novel (not done before), and it must be non-obvious (not a trivial change to something already known). Laws of nature, physical phenomena, abstract ideas, and mere suggestions can't be patented.
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