Utility Patent Guide: What It Protects and How to Get One

A utility patent protects the way something works (for example, its function, structure, or the method behind it).

The utility patent is the most common kind of patent, and it is what you’re actually thinking about when you think “patent,” even if you haven’t heard it called that by name. If you have built a new machine, a manufacturing process, a chemical composition, a software-driven system, or an improvement to any of these, a utility patent is most likely the path.

This guide explains what a utility patent covers, what makes an invention patentable, how the application process works, and where experienced patent counsel makes the difference.

Our attorneys hold engineering and science degrees and focus on patent prosecution and intellectual property strategy for technology-driven companies.

Call NK Patent Law at (919) 348-2194 or contact us online to discuss your patent strategy.

What a utility patent protects

Under federal law, a utility patent can be granted for a new and useful process, machine, article of manufacture, or composition of matter, or a new and useful improvement to any of these. That language, drawn from the Patent Act, covers an enormous range of technology, from a semiconductor architecture to a recycling machine to a software-implemented data-processing system.

It helps to distinguish a utility patent from the two other kinds of patents the United States Patent and Trademark Office (USPTO) grants:

• Utility patent: protects how an invention functions and operates.
• Design patent: protects the ornamental appearance of an article (how it looks, not how it works).
• Plant patent: protects a new and distinct variety of asexually reproduced plant.

For most companies, the first question is whether a utility patent, a design patent, or both make sense. A new consumer product might have a patentable internal mechanism (utility) and a distinctive shape (design). The right answer depends on what about your product is novel and what a competitor would have to copy to compete with you.

A granted utility patent gives you the right to exclude others from making, using, selling, offering to sell, or importing the claimed invention in the United States. A patent’s life is generally twenty years from the earliest non-provisional filing date, subject to maintenance fees, which must be paid at 3.5, 7.5, and 11.5 years after the patent issues to keep it alive.

One very common misunderstanding: a patent does not, by itself, give you the right to “do” anything (like make and sell your invention). It doesn’t guarantee you the freedom to practice your own invention. A patent is a negative right, meaning that it lets you stop others from doing something.

What makes an invention patentable

Not every new idea qualifies. To get a patent, the patent application has to meet several requirements, each tied to a section of the patent statute:

• Subject-matter eligibility (35 U.S.C. § 101). This means that the subject matter of the invention has to be something that the patent law is willing to give you a patent for in the first place. The invention has to fall within an “eligible” category. Ineligible categories include mere abstract ideas, laws of nature, and natural phenomena. You can’t get a patent on these. This comes up most often in software-based inventions, where the line between a patent-eligible technical improvement and a patent-ineligible abstract idea is blurry and heavily disputed.
• Novelty (35 U.S.C. § 102). The invention has to be new. If it already exists, you can’t get a patent on it. Whether it already exists comes down to “prior art,” which can be thought of as the universe of things that are publicly known to already exist. Prior art includes earlier patents, published patent applications, products, and things that are in public use. If a single piece of prior art already discloses everything in a patent claim, that patent claim is referred to as “anticipated” and cannot be patented.
• Non-obviousness (35 U.S.C. § 103). In addition to being new, an invention must also be non-obvious. Even if no single piece of prior art discloses the invention, it cannot be an obvious combination of what was already known. Obviousness is judged from the perspective of “a person of ordinary skill in the art” (often referred to as a “POSITA” for short).
• Written description, enablement, and definiteness (35 U.S.C. § 112). The patent application has to describe the invention fully enough that a POSITA could make and use it, and the claims have to be definite about what they cover.

Much of the value an experienced patent attorney or patent agent adds happens before filing: identifying what is genuinely novel, understanding where the obviousness risks lie, anticipating the rejections an examiner is likely to raise, and drafting claims broad enough to be commercially meaningful but defensible against prior art.

Our attorneys hold engineering and science degrees and focus on patent prosecution and intellectual property strategy for technology-driven companies.

Call NK Patent Law at (919) 348-2194 or contact us online to discuss your patent strategy. 

The United States is a first-inventor-to-file system

Between two people working separately on the same invention, the one who files first generally wins. This is different from the older first-to-invent system, and it means that delaying filing a patent application is risky. Somebody could invent something later than you but file before you, and they will generally win.

Public disclosure of your invention can also jeopardize patent rights, particularly abroad. Presenting at a trade show, pitching investors, or publishing a paper before you file a patent application can all create problems that you may not be able to fix. You may unintentionally kill your ability to file a patent application without even realizing it. US patent law gives you a one-year grace period to file a patent application after your own disclosure, but most foreign countries give you none, so the safe assumption is zero. And disclosure is not just presentations and papers. Selling your invention, or even offering to sell it, starts the same clock. Customer pilots, paid betas, early-access programs, and quotes to prospective buyers can all count. The Supreme Court has held that even a confidential sale can qualify as prior art. If your product is already in front of customers in any form, the time to talk to a patent attorney was yesterday. The USPTO maintains resources on the first-inventor-to-file system.

Provisional versus non-provisional applications

There are two main ways to start a utility patent filing, and the difference is one of the most useful things to understand.

The first way is a provisional patent application. A provisional patent application is a lower-cost, streamlined filing that establishes a filing date but is never examined by the USPTO and never matures into a patent on its own. It gives you twelve months to file a corresponding non-provisional application while letting you call your invention “patent pending.” There is an additional, more subtle benefit here: the provisional year does not count against the twenty-year patent term. A well-drafted provisional effectively shifts your protection twelve months later into your product’s commercial life, which can come in handy in year nineteen.

Provisionals are useful when an invention is still developing, when budget timing matters, or when you need to lock in a priority date before an imminent disclosure. But there’s a catch: a provisional only covers and can only protect what it actually describes. A thin, hastily written provisional can create a false sense of security.

The second way is a non-provisional patent application. A non-provisional application is the formal application that the USPTO examines to determine whether to issue a patent. It includes a full specification, formal drawings, and, most importantly, the claims that define the legal boundaries of your protection. The non-provisional filing date anchors the twenty-year life of the patent, and it is what starts the examination process.