Patents

What Are the 3 Types of Patents and How to Obtain One?

Utility, design, and plant patents each protect a different part of an invention. See which one fits yours and how the application process works.

Utility, design, and plant patents each protect a different part of an invention: how something works, how it looks, or a new plant variety. Choosing the right one shapes your application strategy from day one. Leavitt and Eldredge attorneys review your invention, recommend the correct filing, and handle it at a flat fee.

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While the concepts are simple, you’ll need to know which type of patent you’re seeking because they protect very different aspects of an invention or idea.

WHAT IS A UTILITY PATENT?

A utility patent provides legal protection for the working functions of an invention. Utility patents are used to stop others from “reinventing” what’s essentially the same product by closely mimicking the original. Unlike the design patent definition, the utility patent does not protect the form, or appearance of an invention, only the function.

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Because of the generally broader scope of protection, utility patents are the most common type of patent. Ignoring the nuances, there are two types of utility patent applications:

  • Provisional patent applications; and
  • Nonprovisional patent applications.

A provisional patent application is an incomplete application that meets minimum filing requirements to secure a temporary 12-month patent pending date and status. Because these are incomplete applications that only temporarily reserve priority anyway, patent attorneys generally tend to spend far less time drafting them and subsequently charge the client far less. But many of our potential clients don’t realize that the moment they file a provisional patent application the clock starts ticking and they have 12 months to convert the application to a nonprovisional patent application or they will lose priority in the invention altogether.

A nonprovisional patent application, is a complete application with detailed filing requirements monitored by the USPTO for compliance. When done properly, a nonprovisional utility patent application results in a carefully balanced disclosure of specification (context), claims, summary, and drawings. Ideally, the nonprovisional patent application provides broad claims and discloses just enough information to enable 3rd parties to implement the invention, but withholds enough information that that they must exhaust their own research and development costs. Getting this balance right usually requires a seasoned patent lawyer and several rounds with the USPTO, but is well worth the effort.

Nonprovisional patent applications are generally considered far superior to provisional patent applications, if only because provisional patent applications will never become registered as patents unless they are first converted into nonprovisional utility patent applications. In other words, provisional applications are the first down, nonprovisional applications are the touchdown.

In our practice, we frequently see clients who are fully committed to their inventions ask us for provisional patent applications because they are trying to save money. We generally try to steer them away from this approach. If you know you will be committed to this idea for more than a year, commit to a nonprovisional application because a provisional application will only delay things and cost you money. In fact, the only time we recommend the provisional patent application process is when the client expresses doubt that they are willing or able to pursue the idea for at least 12 months, but for some reason they need to secure the priority date anyway.

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WHAT IS A DESIGN PATENT?

Design patents protect the physical appearance of the invention. This type of patent is particularly useful in protecting an item from being visually counterfeited and marketed as the product or a close facsimile of the product.

Unlike the utility patent definition, a design patent does not protect the function of an invention. Instead, it only protects the form or appearance.

PLANT PATENT DEFINITION

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According to the USPTO, a plant patent protects agriculturists and other botanical inventors who have “invented or discovered and asexually reproduced a distinct and new variety of plant.”

Unlike the vast potential established by the utility patent and design patent definitions, plant patent applications are very uncommon outside of the botanical, agricultural, and pharmaceutical industries.

How To Obtain Patent Protection

The United States Patent and Trademark Office (USPTO) requires that an application for patent protection be submitted. If you are familiar with the 3 patent types, you will be better able to decide which patent application to submit. Our experienced patent attorneys will help guide you in the necessary steps to move forward with your invention or idea.

We offer a free consultation or you can fill out our form on this page to obtain more information.

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Utility Patent

Non-Provisional Application

(Protects Functional Inventions)

Secures Priority in the Invention

Expires in 20 Years

Complete Application

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Utility Patent

Provisional Application

(Placeholder For Functional Inventions)

Secures Priority in the Invention

Expires in 12 Months

Meets Basic Filing Requirements

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Design Patent

(Protects the Appearance of an Invention)

Secures Priority in the Invention

Expires in 15 Years

Complete Application

Common questions

Frequently asked

What is the difference between a utility patent and a design patent?
A utility patent protects how an invention functions: the mechanism, process, or composition behind it. A design patent protects only the ornamental appearance of a product, not what it does. Many products qualify for both, since the way something works and the way it looks are separate legal questions. Your attorney can tell you which filing, or both, fits your invention.
What does a plant patent protect?
A plant patent covers a new and distinct variety of plant that has been asexually reproduced, meaning propagated by grafting or cutting rather than from seed. It protects agriculturists and breeders who develop a genuinely new variety. Plant patents are far less common than utility or design filings, but they carry the same USPTO examination process and the same need for a careful application.
What is the difference between a provisional and nonprovisional patent application?
A provisional application is an incomplete filing that meets minimum requirements and holds your place in line for twelve months, but it never becomes a patent on its own. A nonprovisional application is the complete filing, with full claims and specification, that the USPTO actually examines. Most inventors use a provisional to lock in an early filing date while they finish testing or funding, then convert to nonprovisional.
How long does patent protection last?
A utility patent generally lasts 20 years from the filing date, once maintenance fees are paid on schedule. A design patent lasts 15 years from the date it is granted and carries no maintenance fees. A plant patent also runs 20 years from filing. Which clock applies to your invention depends on which type of patent you filed.
How do I know which type of patent fits my invention?
Start with what you are trying to protect. If it is how something functions or is made, you likely need a utility patent. If it is purely the look of a product, a design patent fits. If you bred a new plant variety, that is a plant patent. A free consultation with our attorneys is usually the fastest way to confirm it before you file.