The basics
What is a freedom-to-operate analysis?
An FTO analysis answers a practical question: can a company make, use, sell, offer to sell or import a specific product in a specific country without infringing a third party’s patent claims that are still in force there? It pairs a search of granted, in-force patents with a claim-by-claim comparison, and it often ends in a written opinion from patent counsel.
The legal test is the all-elements rule. A claim is infringed only if the product meets every one of its limitations, literally or by an equivalent. Owning a patent of your own doesn’t settle the question, because a patent is a right to exclude others, not a right to practice.
The stakes are lopsided. Median litigation costs through trial run from about $600,000 to $3.6 million, depending on what is at stake, and a court can enhance damages up to three times in egregious cases, typically willful infringement (35 U.S.C. § 284; Halo). Failing to get an opinion can’t be used to prove willfulness (§ 298), but a timely, competent opinion of counsel is evidence of good faith.