Someone Is Copying Your Patented Invention. Now What?

You see a product on the market that looks suspiciously like your patented invention. Maybe a competitor launched it. Maybe it showed up on Amazon from a company you have never heard of. Your stomach drops. Then the anger kicks in.

Here is my first piece of advice: do not panic. And do not send an angry email. Both are natural reactions. Neither helps you.

In my years at IBM, I saw both sides of patent disputes. I represented the company asserting its patents and defended against infringement allegations from others. Here is what I learned about handling them effectively.

Step 1: Confirm Your Patent Actually Covers What They Are Doing

This is where most people get ahead of themselves. Seeing a product that looks similar to yours is not the same as proving patent infringement. Infringement is determined by the claims of your patent -- specifically, the independent claims -- not by the general concept of the invention.

A claim-by-claim analysis compares each element of your patent claims against the accused product or process. Every element must be present. If even one element is missing, there may not be literal infringement. There is a legal doctrine called the doctrine of equivalents that can sometimes close that gap, but it has limits.

This analysis requires precision. It is not something to do casually. Get it wrong and you risk sending a demand letter you cannot back up -- which creates problems of its own.

Step 2: Document Everything

Before you make any move, build your evidence file. Buy the product. Take photographs. Download marketing materials and website pages. Save screenshots with dates. If the product is being sold online, capture the listing, the seller information, and the pricing.

Evidence has a way of disappearing once an infringer realizes they are being watched. Secure it early.

If the infringement involves a process rather than a product, documentation is harder but no less important. Trade show presentations, published specifications, or the product's user manual can sometimes reveal enough about the underlying method to support your case.

Step 3: Talk to a Patent Attorney Before You Do Anything

I cannot stress this enough. The letter you send -- or do not send -- matters enormously. A poorly worded cease and desist letter can trigger a declaratory judgment action where the accused infringer sues you first, choosing a court that is convenient for them and inconvenient for you.

A patent attorney can assess the strength of your position, advise on strategy, and draft communications that protect your options rather than limiting them.

Cease and Desist Letters: Handle With Care

A well-crafted cease and desist letter can resolve an infringement dispute without litigation. It puts the infringer on notice and gives them an opportunity to stop voluntarily. Many do, particularly smaller companies that did not realize they were infringing.

But cease and desist letters can also backfire. If the letter is too aggressive or too vague, it may provoke rather than resolve. If it accuses someone of infringement without a solid basis, it can expose you to liability. And once you send it, the other side knows you are paying attention -- which may cause them to destroy evidence or alter their product just enough to complicate your case.

Timing and tone matter. Get professional guidance before sending anything.

Licensing: The Alternative Worth Considering

Not every infringement dispute needs to end with someone stopping production. Sometimes the smarter play is licensing. You grant the infringer permission to use your patented technology in exchange for royalty payments.

Licensing can generate meaningful revenue, particularly if the infringing product has found market traction you have not captured yourself. It also avoids the cost and uncertainty of litigation.

I have seen licensing deals that turned adversaries into business partners. The right arrangement depends on the technology, the market, and the parties involved.

When Litigation Makes Sense -- And When It Does Not

Let me be direct. Patent litigation is expensive. Even a straightforward case can cost hundreds of thousands of dollars. Complex cases with extensive discovery, expert witnesses, and a full trial can run into the millions.

Litigation makes sense when the stakes justify the cost. If a competitor is capturing significant market share with your technology, or if an infringer refuses to negotiate in good faith, court may be the only path.

It does not make sense when the infringer is small, the damages are modest, or the cost of litigation would exceed what you stand to recover. In those situations, a well-negotiated license or even strategic patience may serve you better.

The ITC Option for Imported Products

If the infringing product is manufactured overseas and imported into the United States, you have an additional enforcement tool: the International Trade Commission. The ITC can issue exclusion orders that block infringing products at the border.

ITC proceedings move faster than district court litigation -- typically 12 to 18 months from filing to decision. The downside is that the ITC cannot award monetary damages. But if your primary goal is stopping the flow of infringing imports, it is a powerful option.

The Bottom Line

Discovering that someone is copying your invention is frustrating. The instinct to act immediately is strong. But the most effective response is methodical. Confirm the infringement. Document it. Get professional counsel. Then choose the enforcement path that aligns with your business goals -- not just your emotions.

Patents are valuable assets. Defending them requires the same rigor that went into obtaining them.