To get a U.S. patent, you file an application with the United States Patent and Trademark Office (USPTO), then work through an examination process that typically runs 18 to 36 months from filing to grant. The USPTO currently averages about 22 months just to issue its first substantive response on a new utility patent application, so patience is built in from the start.1United States Patent and Trademark Office. Pendency – Patents Dashboard Along the way you’ll pay filing fees, issue fees, and later maintenance fees, and you’ll need to meet specific legal requirements about what can be patented and how the application is written.
Pick the Right Type of Patent
The USPTO grants three kinds of patents, and the one that fits your invention determines both the term of protection and some of the rules that follow.
A utility patent covers new and useful processes, machines, manufactured items, and chemical compositions. This is the common one. It lasts 20 years from the filing date, and you have to pay maintenance fees to keep it in force that long.2Office of the Law Revision Counsel. 35 U.S. Code 101 – Inventions Patentable3Office of the Law Revision Counsel. 35 USC 154 – Contents and Term of Patent
A design patent covers the ornamental appearance of a manufactured item rather than how it works. It lasts 15 years from the date it’s granted, with no maintenance fees.4Office of the Law Revision Counsel. 35 U.S. Code 171 – Patents for Designs5Office of the Law Revision Counsel. 35 USC 173 – Term of Design Patent
A plant patent covers new and distinct plant varieties reproduced asexually through cuttings, grafting, or similar methods rather than seeds. It lasts 20 years from the filing date and also requires no maintenance fees.6Office of the Law Revision Counsel. 35 U.S. Code 161 – Patents for Plants7United States Patent and Trademark Office. General Information About 35 U.S.C. 161 Plant Patents
Confirm the Invention Can Be Patented
Your invention has to clear three legal tests. It must be novel: no one has previously patented, published, publicly used, or sold the same thing before your filing date.8Office of the Law Revision Counsel. 35 USC 102 – Conditions for Patentability; Novelty It must be non-obvious, meaning someone with ordinary skill in the relevant field wouldn’t see the invention as an evident next step from what already exists.9Office of the Law Revision Counsel. 35 USC 103 – Conditions for Patentability; Non-Obvious Subject Matter And it must be useful in a practical, real-world sense.10United States Patent and Trademark Office. Patent Essentials
Some things can’t be patented no matter how clever they are. Courts have consistently held that laws of nature, natural phenomena, and abstract ideas are off-limits. You can’t patent gravity, a newly discovered mineral in its natural state, or a pure mathematical formula, and running an abstract concept on a computer doesn’t fix the problem. The invention has to apply the concept in a specific, concrete way that goes beyond the underlying idea.2Office of the Law Revision Counsel. 35 U.S. Code 101 – Inventions Patentable
Search for Prior Art Before You File
Before you spend money on an application, search for “prior art,” which is anything publicly available that resembles your invention. That includes existing patents, published patent applications, academic papers, product manuals, and even videos demonstrating similar technology. The USPTO’s patent database, Google Patents, and the European Patent Office’s Espacenet are reasonable starting points.
A thorough search tells you whether your invention is genuinely new, and it reveals the surrounding technology so you can draft claims that carve out the strongest protection. Skipping it is how applicants spend thousands of dollars on an application that gets rejected over a patent they could have found in ten minutes. If the search turns up something very close, that’s useful information: you might refine the invention, focus on what makes your version different, or decide not to file at all.
Provisional or Non-Provisional Application
There are two ways into the system. A provisional application is a lower-cost placeholder that establishes an early filing date and lets you use “patent pending” on your product. It lasts 12 months, and the deadline cannot be extended. The USPTO does not examine your invention during those 12 months; you’re buying time to refine the product, test the market, or line up funding.11United States Patent and Trademark Office. Provisional Application for Patent The filing fee is $325 for a large entity, $130 for a small entity, or $65 for a micro entity.12United States Patent and Trademark Office. USPTO Fee Schedule Miss the 12-month window and the provisional expires with no refund and no extension.
A non-provisional application is the real thing. It triggers formal examination and can lead to an issued patent. You can file one directly without ever filing a provisional, or you can file one within 12 months of a provisional to claim that earlier date. The earlier date matters because the U.S. operates on a first-to-file system: if two people independently invent the same thing, the one who files first wins.
What Goes in the Application
A non-provisional utility application has several required components.
The specification is the written heart of the application. It describes what the invention is, how it works, and how someone with relevant technical knowledge could build and use it. Federal law requires enough detail that a skilled person could replicate the invention without excessive experimentation.13Office of the Law Revision Counsel. 35 USC 112 – Specification
The claims define the legal boundaries of the patent, like the fence lines on a property deed. Broad claims cover more ground but are harder to defend against prior art. Narrow claims are easier to get approved but leave competitors more room to design around your invention. Writing effective claims is the single most consequential part of the entire process, and it’s the main reason most people hire a professional.
You also need drawings that illustrate the invention’s components and operation, and an oath or declaration confirming that you are the original inventor and that the information in the application is accurate.
Doing It Yourself vs. Hiring a Professional
You can file on your own, but most applicants hire a registered practitioner. Patent attorneys and patent agents can both prepare and file applications and argue your case during examination. Patent agents cannot represent you in court, give opinions on infringement, or provide legal advice outside the narrow scope of filing. Patent attorneys are licensed lawyers who can do all of that.
Professional fees for drafting a standard utility application typically run $4,000 to $8,000, depending on complexity and the practitioner’s experience. That’s on top of USPTO fees. The investment often pays for itself in stronger claims and fewer rejections, but it’s a real cost to budget for.
Filing Fees
You submit the completed application electronically through Patent Center or by mail, with a transmittal form and an application data sheet that provides bibliographic information about you and the invention.14United States Patent and Trademark Office. File Online
Three separate USPTO fees are due at filing for a utility patent: the basic filing fee, a search fee, and an examination fee. For a large entity those fees total $2,000. Small entities pay $800, and micro entities pay $400.12United States Patent and Trademark Office. USPTO Fee Schedule Small entities receive a 60% reduction on most patent fees, and micro entities receive an 80% reduction.15United States Patent and Trademark Office. Micro Entity Status To qualify as a micro entity, you generally must meet income limits and have been named on no more than four previously filed patent applications.
Examination and Office Actions
Once filed, your application enters a queue. A USPTO examiner reviews the claims against the requirements of patent law, searches for prior art, and evaluates whether the invention is novel, non-obvious, and adequately described. The average wait for that first examiner response is about 22 months.1United States Patent and Trademark Office. Pendency – Patents Dashboard
The first response is usually an Office Action, the examiner’s written explanation of what’s wrong with the application. Rejections based on prior art are common and not necessarily fatal. The examiner may cite an existing patent that covers similar ground and explain why your claims overlap. You then have a set period to respond, either by amending the claims to distinguish your invention from the prior art, arguing the examiner’s reading is wrong, or some combination.
Multiple rounds of Office Actions and responses are normal. Each exchange narrows the disagreement until the examiner either approves the claims or issues a final rejection. Even a “final” rejection isn’t necessarily the end; you can file a request for continued examination, appeal to the Patent Trial and Appeal Board once claims have been rejected twice, or amend further.16United States Patent and Trademark Office. Appeals The full path from filing to grant typically runs 18 to 36 months, and complex technologies can stretch beyond that.
Notice of Allowance and the Issue Fee
When the examiner approves your claims, the USPTO sends a Notice of Allowance. You then have exactly three months to pay the issue fee, and that deadline cannot be extended.17United States Patent and Trademark Office. Manual of Patent Examining Procedure Section 1306 – Issue Fee The utility patent issue fee is $1,290 for a large entity, $516 for a small entity, or $258 for a micro entity.12United States Patent and Trademark Office. USPTO Fee Schedule Once you pay, the USPTO publishes and grants your patent.
Keeping a Utility Patent Alive
A utility patent doesn’t stay in force automatically after grant. You have to pay maintenance fees at three intervals, and they climb steeply:
- 3.5 years after grant: $2,150 large entity, $860 small entity, $430 micro entity
- 7.5 years after grant: $4,040 large entity, $1,616 small entity, $808 micro entity
- 11.5 years after grant: $8,280 large entity, $3,312 small entity, $1,656 micro entity
Each payment has a six-month window before the due date; for example, the first fee can be paid anytime between three and three-and-a-half years after grant. A six-month grace period follows each due date, but paying during the grace period costs a surcharge.18United States Patent and Trademark Office. Maintain Your Patent12United States Patent and Trademark Office. USPTO Fee Schedule Miss a payment entirely and the patent expires. Design patents and plant patents don’t carry maintenance fees.
Two Things That Often Catch Applicants Off Guard
A U.S. Patent Only Protects You in the U.S.
If you want protection in other countries, you generally have 12 months from your earliest U.S. filing date to file in foreign patent offices while claiming priority from that original date. The Patent Cooperation Treaty (PCT) simplifies this by letting you file a single international application that preserves your rights in more than 150 member countries, giving you up to 30 months from your earliest filing date to enter the “national phase” in specific countries. Each country charges its own fees and often requires local counsel and translated documents, so most inventors focus on places where they actually plan to sell or manufacture.
If You Invented It at Work, Your Employer May Own It
The default rule is that the inventor owns the patent, even as an employee. But most employers require assignment agreements as a condition of employment, and those contracts typically transfer ownership of any work-related inventions to the company. If you were specifically hired to invent, the employer may own the rights even without a written agreement. Even when the inventor keeps ownership, the employer often gets a “shop right,” a non-exclusive, royalty-free license to use the invention internally. If you’re developing something at work and considering a patent, read the employment agreement before you file. The answer to who owns the invention is almost always in that document.