Patent Attorney and Founder
Learn what patent litigation means, how patent infringement works, and what patent owners can do when someone uses their patented invention without permission.
So, you’ve spent the time and money getting a patent. You have exclusive rights to your invention. Then you discover another company is making, selling, or importing something that you believe falls within those rights.
What happens next?
That’s where patent litigation comes in.
Patent litigation is essentially the legal process a patent owner uses to enforce their patent rights against someone they believe is infringing them. And there’s one important thing I want every patent owner to understand:
The USPTO doesn’t enforce your patent for you.
Getting a patent gives you rights, but it’s generally up to you as the patent owner to enforce those rights if someone crosses the line.
In this article, I’ll explain what patent litigation is, how infringement is evaluated for different types of patents, and what typically happens before a case ever reaches trial.
What Is Patent Litigation?
Patent litigation occurs when a patent owner takes legal action against a third party they believe is infringing their patent.
When the USPTO grants you a patent, you’re given certain exclusive rights. Depending on the patent, those rights generally allow you to prevent others from making, using, selling, offering to sell, or importing the patented invention in the United States.
But having those rights doesn’t mean the government automatically monitors the marketplace for you.
There’s no USPTO enforcement officer who’s going to show up at a competitor’s warehouse because they think someone is copying your invention.
You have to enforce your rights yourself.
That usually means working with a patent attorney who can investigate the potential infringement, communicate with the other party, negotiate a resolution, and, when necessary, pursue litigation.
The USPTO Doesn’t Police Patent Infringement
This is one of the biggest misconceptions I hear from inventors.
You might think:
“If the government gave me the patent, won’t the government protect it?”
Not exactly.
The USPTO examines patent applications and, when appropriate, grants patents. But the USPTO isn’t a police force for your patent rights.
If you discover that another business is selling a product that you believe infringes your patent, the responsibility for enforcement falls on you.
That means you may need to:
- Investigate the potentially infringing product
- Analyze your patent claims
- Gather evidence
- Have an attorney evaluate the situation
- Contact the other party
- Negotiate a license or settlement
- File a lawsuit if necessary
That’s an important distinction: a patent gives you a legal right, but you still have to decide how and when to enforce it.
Utility Patent Infringement: Read the Claims
Let’s start with utility patents.
A utility patent protects the way an invention works, including its structure, functionality, or method.
The most important part of a utility patent when it comes to infringement is the claims.
Think of the claims as the legal boundaries of your patent.
If someone is accused of infringing your patent, you don’t simply look at their product and say, “That looks like mine.”
You have to analyze the specific language of the patent claims.
For example, imagine your patent claim requires:
- A particular housing
- A specific type of sensor
- A processor connected to that sensor
- A particular communication system
If you’re alleging that a competitor infringes that claim, you generally need to examine whether their product contains the required elements of the claim.
That’s why patent infringement analysis can get complicated.
It’s not necessarily about whether two products look generally similar. It’s about whether the accused product falls within the legal scope of the patent claim.
If you’re unfamiliar with patent terminology, our Patent Glossary can help you understand some of the terminology you’ll encounter.
Design Patent Infringement Works Differently
Design patents are different.
A design patent protects the ornamental appearance of a product rather than the underlying way it functions.
So when you’re dealing with a design patent, the question isn’t necessarily:
“Does this product work the same way?”
Instead, the analysis focuses heavily on the appearance of the accused product.
One important concept is the ordinary observer test.
In simple terms, you can think of it this way:
If an ordinary person looked at the patented design and the accused product, would they think the two designs are substantially the same?
For example, imagine you’ve patented the distinctive three-dimensional shape of a consumer product.
Another company releases a product with a very similar overall appearance.
You’d want to compare the designs carefully, not just one tiny feature, but the overall visual impression.
That’s one of the reasons design patent infringement can be very different from utility patent infringement.
Patent Litigation Doesn’t Always Mean Going to Trial
When people hear the word “litigation,” they often imagine two lawyers standing in front of a jury while a judge watches.
That can happen.
But it isn’t necessarily where most patent disputes end.
In many situations, the parties resolve their dispute before reaching a full trial.
That could happen through:
- Settlement negotiations
- A licensing agreement
- A business resolution
- Changes to the accused product
- An agreement to stop certain activities
- Other negotiated terms
In other words, filing or threatening litigation doesn’t necessarily mean you’re going all the way to trial.
Sometimes the possibility of litigation is enough to get the parties talking.
That’s where having a clear understanding of the strength of your patent, and the evidence supporting your infringement position, can become extremely important.
What Happens Before Patent Litigation?
Before you rush into court, there are usually several important questions to answer.
1. Is Your Patent Enforceable?
First, you need to understand the status of your patent and whether there are potential issues that could affect enforcement.
Having a patent document in your hand doesn’t automatically mean every possible dispute will be easy to win.
Patent rights have limitations, and there can be legal and factual defenses available to the accused party.
2. Is There Actually Infringement?
Next, you need to determine whether the competitor’s product or process actually falls within your patent claims.
This is where a detailed infringement analysis becomes important.
For a utility patent, you may need to compare each element of an asserted claim against the accused product.
For a design patent, the analysis focuses on the overall appearance and relevant legal standards.
3. What Is the Business Goal?
This is something I always encourage patent owners to think about.
What do you actually want?
Do you want the competitor to stop selling the product?
Do you want a licensing agreement?
Do you want compensation for past infringement?
Do you want to negotiate a business relationship?
Or is the main objective protecting your market position?
Patent litigation isn’t just a legal exercise. It’s a business decision, too.
How Much Does Patent Litigation Cost?
Patent litigation can be expensive.
That’s one reason you shouldn’t jump into a lawsuit without first understanding the potential costs, risks, and business value involved.
The cost can vary dramatically depending on the complexity of the patent, the number of patents and claims involved, the amount of discovery required, the parties involved, and whether the case goes all the way through trial.
If you’re still in the earlier stages of protecting your invention, it’s also worth understanding the costs involved in obtaining and maintaining patent protection. You can learn more in our guide to patent costs.
And if you’re considering hiring an attorney, you can also review our information on patent attorney pricing.
The key point is this:
Don’t wait until you’re facing a lawsuit to think about the business value of your patent.
Think about enforcement strategy when you’re developing your overall intellectual property strategy.
Patent Litigation vs. Patent Licensing
There’s another option that many patent owners overlook: licensing.
Instead of simply trying to stop another company from using your patented technology, you may be able to negotiate a license.
A license essentially gives another party permission to use your intellectual property under agreed-upon terms.
That could potentially create a revenue stream while allowing another company to commercialize the technology.
If that sounds more aligned with your goals, take a look at our guide to patent licensing.
The right strategy depends heavily on your business goals.
Sometimes enforcement makes sense.
Sometimes licensing makes more sense.
And sometimes the best approach is to negotiate a solution that keeps everyone out of court.
What If Someone Is Copying Your Invention?
If you believe another company is infringing your patent, don’t immediately assume that you need to file a lawsuit tomorrow.
Start by gathering information.
Look carefully at:
- Your issued patent
- The relevant patent claims
- The competitor’s product
- Product documentation
- Marketing materials
- Sales information
- Public statements
- Any other evidence showing how the product is made, used, or sold
Then have the situation evaluated by a qualified patent attorney.
You want to understand the strength of your position before deciding what to do next.
And remember: similarity alone doesn’t necessarily equal patent infringement.
The legal analysis depends on the type of patent and the specific rights you’ve been granted.
The Bigger Picture: A Patent Is a Business Asset
This is something I want inventors and entrepreneurs to keep in mind.
A patent isn’t just a certificate you frame on the wall.
It’s an intellectual property asset that can potentially help you:
- Protect your market position
- License technology
- Attract investors
- Strengthen your competitive advantage
- Create negotiating leverage
- Build value in your company
But those benefits don’t happen automatically.
You need to understand what your patent protects and how you intend to use those rights.
That’s why I encourage inventors to think about commercialization and enforcement from the beginning, not after a competitor has already entered the market.
Final Takeaways on Patent Litigation
Patent litigation is the process of enforcing patent rights against someone you believe is infringing them.
The most important things to remember are:
- The USPTO doesn’t enforce your patent for you.
- Utility patent infringement focuses heavily on the patent claims.
- Design patent infringement focuses on the protected appearance and the overall visual similarity.
- Many patent disputes settle before reaching trial.
- Litigation is a business decision as well as a legal decision.
- Licensing may provide an alternative to fighting the dispute in court.
So, if you have a patent and you’ve discovered a competitor doing something that looks suspiciously similar, don’t panic, but don’t ignore it either.
The first question I’d ask is: What exactly does your patent protect, and what is the other company actually doing?
Once you understand those two things, you can start making an informed decision about what comes next.
It is my hope that this article gives you the knowledge and clarity you need to Go Big and Go Bold℠!
If you have questions about protecting or enforcing your invention, book a free discovery call. We’d love to help.
Legal Note
Legal Note: This blog article does not constitute legal advice. Although the article was written by a licensed USPTO patent attorney there are many factors and complexities that come into patenting an idea. We recommend you consult a lawyer if you want legal advice for your particular situation. No attorney-client or confidential relationship exists by simply reading and applying the steps stated in this blog article.