A freedom to operate (FTO) analysis tells you whether making, using or selling your product or process is likely to infringe someone else's patent rights in a given country. It is a risk assessment, not a guarantee. Run it early, while you can still change the design, and update it as the product matures. Then bring in a patent attorney for the legal opinion once the design settles.
This guide is for university technology transfer teams, researchers, founders and companies that need to decide what to search, when, and what to do with the result.
TL;DR
- FTO analysis checks whether a specific product, in specific countries, at a specific time, could infringe unexpired third-party patents. It does not prove you are free of all risk.
- Search early, before the design is locked, and refresh the analysis at each later go/no-go decision.
- A technical search finds the patent documents. A legal FTO opinion, written by a qualified professional, interprets the claims and weighs the infringement risk.
- A flagged patent is not the end. You can design around it, license it, challenge it, accept a documented risk, or stop.
- Biotech and medical device FTO each have their own traps: layered patent families in biotech, and independent claim comparison in devices.
Table of Contents
- What freedom to operate actually means
- FTO search, FTO analysis and FTO opinion: the differences
- When to run an FTO analysis
- How a U.S. FTO analysis is conducted
- What to do when a patent might block you
- FTO for biotech: layered rights across the chain
- FTO for medical devices: claims against features
- A worked example: the early-stage spinout
- Our perspective
- Getting support for your FTO and commercialization plan
- Preparing before you start
- FAQ
- Sources
What freedom to operate actually means
Freedom to operate is the ability to carry on research, development, production, marketing or use of a new product or process with minimal risk of infringing third-party intellectual property rights. That definition comes from a University of New Hampshire School of Law handbook chapter by Stanley Kowalski. The same chapter describes an FTO analysis as a risk management tool. It is a reasoned, calculated best estimate of infringement liability in a given jurisdiction at a given time.
Three words in that definition matter most.
- Minimal. No analysis delivers zero risk. WIPO's FTO tool says the goal is not to find a public domain invention or to assert complete freedom to operate. The goal is to gather information so you can make informed design decisions.
- Jurisdiction. Patents are national or regional. A product can be clear in the U.S. and blocked in Germany, or the reverse.
- Time. Patents expire, applications get granted, and ownership changes. An analysis from three years ago describes a landscape that no longer exists.
That is also why FTO is different from a patentability search. A patentability search asks whether your invention is new. An FTO analysis asks whether someone else's patent stops you from selling it. You can hold a granted patent on your invention and still lack freedom to operate, because your invention may build on technology someone else owns.
FTO search, FTO analysis and FTO opinion: the differences
People use these terms loosely, and the keyword variants readers type (FTO analysis, FTO assessment, FTO search) often mean the same thing. There is a real distinction, though, between the technical step and the legal step.
In a 2020 webinar, Alex Reichel of WIPO explained that the technical FTO analysis identifies patent documents with claims that may recite some or all aspects of an invention. A legal FTO opinion goes further. It determines the scope of the claims in those documents and assesses the risk that practicing the invention would be found to infringe if an accusation were made.
| Step | Who usually does it | What it produces |
|---|---|---|
| Technical FTO search | Researcher, searcher or patent professional | A list of relevant patents and published applications |
| Claim screening | Technical team with patent counsel | A shortlist of patents whose claims might cover your product |
| Legal FTO opinion | Qualified patent attorney | A reasoned view on infringement risk, validity and options |
The same webinar draws a line between FTO and a patent landscape report. A landscape gives an overview of an area of technology. An FTO looks at one specific invention, in the countries and timeframe of interest, for its planned use.
So when someone asks for a freedom to operate assessment, ask which of the three outputs they mean. A search list is useful for screening. Only a legal opinion from an attorney gives you something to rely on when investors, licensees or acquirers ask hard questions.
When to run an FTO analysis
The short answer: earlier than feels natural.
WIPO's guidance suggests a preliminary FTO determination early in the screening stage, before you commit to a specific design, and an update at each later gate. Once the design is settled, it recommends seeking a qualified professional's legal FTO analysis for the countries of interest. The logic is simple: information is most valuable while you can still change the concept.
In practice, these are the moments where we see teams benefit most:
- Before a spinout is formed. If the technology depends on a third party's patent, that shapes the license terms, the valuation and the story you tell investors.
- Before a major funding application or raise. Investors and grant reviewers ask whether anything blocks the path to market.
- Before design freeze. Changing a component on paper costs far less than changing it after verification testing or manufacturing scale-up.
- Before a clinical or commercial launch. This is the point for a full legal opinion in each target market.
- After a material change. A new formulation, a new indication, a new supplier or a new market all change the question being asked.
Because patents issue, lapse and transfer over time, treat FTO as a living file rather than a one-time deliverable.
How a U.S. FTO analysis is conducted
There is no single mandated procedure. A defensible U.S. analysis generally follows the same arc.
1. Define the product precisely
Kowalski stresses that early preparation shapes everything that follows and determines the quality of the work product. The analysis starts by breaking the product or process into its fundamental components and scrutinizing each for attached IP rights. Write down the components, the way they are made, the way they are used, the target markets and the launch timeline. A vague description produces a vague search.
2. Search the patent literature
The USPTO describes a multi-step patent search strategy. You brainstorm terms, run keyword searches in Patent Public Search, and read patents and published applications in depth. Then you expand using CPC classifications, review cited references, and broaden with foreign patents, non-patent literature or a patent professional's search.
An FTO search is narrower and more adversarial than a prior art search. You are looking for unexpired patents that might be asserted against you, so your terms should describe what your product does and how it is built, not what is novel about it.
3. Include applications and check legal status
WIPO recommends searching both granted patents and published applications. Only granted patents can be enforced, but published applications show the rights the owner is seeking. For each document found, check the current legal status: in force, lapsed, expired or still pending.
4. Compare claims to your product
This is where the technical search becomes legal analysis. Claims, not the abstract or the title, define what a patent protects. In a medical device context, Von Hoffman explains in an article on evaluating freedom to operate that you compare features of your device or method against the independent claims of each patent. If you do not infringe an independent claim, you do not infringe the claims that depend from it. Every claim has a preamble that sets the context, followed by elements describing the claimed invention.
This step is where a patent attorney earns their fee. Reading claims requires training in claim construction, prosecution history and the law of infringement.
5. Assess the risk and decide
The output is a ranked view of the patents that matter, with a reasoned position on each: not infringed, expired, likely invalid, or a real obstacle.
What to do when a patent might block you
A flagged patent starts a decision process. WIPO's guidance says first to confirm through claim analysis whether your product actually falls within the claims, and to assess validity, expiration and non-infringement positions. If risk remains, the options are:
- Design around. Change specifications so the product falls outside the claims.
- License. Negotiate rights from the patent owner. For university-owned patents this is often a straightforward conversation with the technology transfer office.
- Challenge validity. Seek revocation or invalidation of a granted patent.
- Accept the risk knowingly. Monitor the patent and document the decision.
- Stop. If risk cannot be reduced to an acceptable level, end the project before more money goes in.
The order matters. Teams often jump straight to a validity challenge, which is slow and expensive, when a modest design change or a license would resolve the issue in weeks.
A license is also a commercial negotiation. Scope of field, territory, exclusivity, royalties, milestones and sublicensing rights all affect whether your business model works. We cover this side in our IP, patent strategy and licensing work.
FTO for biotech: layered rights across the chain
Biotech is where a product-only search most often falls short. A Bloomberg Law analysis of pharma patent searches says biotech FTO may need to cover amino acid sequences, functional variants, binding properties, epitope specificity, methods of treatment, dosing regimens, formulations, combination claims, manufacturing processes, cell lines and delivery devices. Those rights can sit in overlapping patent families, which makes FTO a continuous process rather than a late, one-time search. A product-only review done late can miss manufacturing, formulation, method-of-use or lifecycle risks.
Practical consequences for a biotech team:
- Map the whole development chain. List the compound or biologic, the platform tools, the manufacturing process, the formulation, the delivery system and the intended use. Each can carry separate patents owned by different parties.
- Search sequences, not just keywords. Sequence-based claims need sequence-aware search methods, because keyword searches alone can miss relevant documents.
- Plan the update schedule. New patents publish constantly in active fields. Tie refreshes to program gates such as IND-enabling work, a financing round or a Phase transition.
- Think about research tools. Platform technologies used in discovery may carry license obligations that surface later, at the worst moment.
For drug programs, FTO also sits alongside regulatory and commercialization planning. If your path runs through FDA review, our guide on FDA regulatory consulting explains what that support covers.
FTO for medical devices: claims against features
Device FTO is often more tractable than biotech FTO, but it has its own discipline. Devices are assembled from many components, and each component, software function or manufacturing method can be covered by a patent.
A workable approach, following the method Von Hoffman describes in Evaluating Freedom to Operate:
- Accumulate patents from several sources, not just one database.
- Screen them for risk, discarding those that clearly do not touch your device.
- Chart your device's features against each independent claim of the remaining patents.
- Work with your patent attorney on any close call.
The design-around option is especially strong for devices. A change to geometry, material, sequence of steps or software logic can move a product outside a claim, and early prototypes are cheap to modify. That is the strongest argument for running the search before design freeze rather than after verification testing.
A worked example: the early-stage spinout
Consider a university lab with a new catheter-based sensing technology, preparing to form a spinout. The inventors hold a pending application on their sensor design.
A sound sequence looks like this:
- Scoping. Describe the sensor, the catheter platform it attaches to, the signal-processing software and the first target market (the U.S.).
- Preliminary search. Run keyword and classification searches for each component, including published applications. Flag a handful of patents on catheter geometry and one on a signal-processing method.
- Claim screening. Chart the product against the independent claims. Two patents look irrelevant. One has expired. One catheter patent is a plausible match.
- Options. Evaluate a minor geometry change to avoid the claim, versus a license from the owner.
- Decision. The team picks the design change, records the reasoning, and schedules an update before design freeze and again before launch.
The result is not a certificate of freedom. It is a documented, defensible picture that helps the spinout raise money and plan development.
Our perspective
Most FTO problems we see are timing problems, not search problems. A team files for protection on its own invention, builds a plan around it, and only asks what else is out there when an investor or a licensing partner raises the question. By then the design is fixed and the options have narrowed to a license or a delay.
Our team has worked inside major university technology transfer offices, in startup leadership, in federal grant review and in industry commercialization. That mix shapes how we approach FTO. We treat it as one input into a commercialization plan that also covers licensing structure, spinout formation, funding and go-to-market. A patent found early can become a licensing conversation, a design choice or a valuation point, rather than a surprise.
We coordinate legal work with a dedicated IP law partner, so strategy and legal opinion move together instead of in separate silos. For universities, researchers and founders, particularly in life sciences, medical devices and engineering, we help define what to ask, when to ask it and what to do with the answer.
the author
Getting support for your FTO and commercialization plan
If you are a university, researcher or founder weighing a launch, a license or a spinout, FTO is one piece of a larger plan. We help with IP and patent strategy, licensing agreement structuring, spinout formation, life sciences and medical device commercialization, funding strategy including SBIR/STTR, and investor introductions, with legal matters coordinated through our IP law partner.
See the full range on our services page, or start from the Tech Transfer Advisors homepage to tell us what you are working on.
Preparing before you start
Whatever route you take, a little preparation makes every dollar of search and legal time go further.
- A clear product description. Components, materials, process steps, software functions and intended use.
- Target countries and timeline. Where you plan to make, sell and use the product, and when.
- Your own IP position. Pending applications, issued patents, and any known third-party technology you rely on.
- Known competitors and prior licenses. Existing agreements may already grant or limit rights.
- Decision points. The gates where the result will change a decision, such as a financing round or design freeze.
With those in hand, the technical search is faster, the attorney's reading is more focused, and the final opinion answers the question you actually have.
FAQ
Is an FTO analysis the same as a patent search?
Not quite. A patent search is the technical step of finding relevant patent documents. An FTO analysis uses that search, then compares claims to your product and assesses infringement risk. A legal FTO opinion from a qualified professional is the most complete version of that analysis.
Does an FTO analysis guarantee I will not be sued?
No. It is a reasoned estimate of risk in a given jurisdiction at a given time. Patents issue and change hands, and claims can be read differently by a court. The value is in making informed decisions and documenting them.
When is the right time to do an FTO analysis?
Run a preliminary one early, before you commit to a specific design, and update it at each later decision gate. Once the design is settled, ask a qualified professional for a legal analysis covering your countries of interest.
What if the analysis finds a blocking patent?
First confirm whether your product actually falls within the claims, and check validity and expiration. If risk remains, you can design around the claims, seek a license, challenge the patent, accept a documented risk, or stop the project.
Is FTO different for biotech and medical devices?
Yes. Biotech FTO often spans sequences, formulations, methods of use and manufacturing processes across overlapping patent families. Device FTO centers on charting your product's features against the independent claims of each relevant patent.
Sources
- Freedom to Operate: The Preparations (Kowalski, University of New Hampshire School of Law)
- Tool 5 Freedom to Operate (WIPO)
- Webinar: Overview of the WIPO Guide on Identifying Patent Information (WIPO, 2020)
- Multi-Step U.S. Patent Search Strategy (USPTO)
- Pharma Patent Searches Need Upgrade to Match Modern Innovations (Bloomberg Law)
- Evaluating Freedom to Operate (Von Hoffman, BMC Today, 2014)