How to Check Freedom to Operate Using Free Tools

A professional FTO costs $5,000–$30,000. This 6-step process identifies the most significant risks using free tools — before you commit to a professional analysis.

Step 1

Define What You Are Making

List every functional feature of your product — not your patent claims, but the actual product as you plan to manufacture and sell it. This is the product that must be free to operate.

Step 2

Search for Active Patents in Your Technology Area

Use Google Patents, Espacenet, and PATENTSCOPE. Search by keywords, CPC/IPC codes, and competitor names. Focus on patents currently in force — check legal status.

Google PatentsEspacenetPATENTSCOPECheck Legal Status

Step 3

Read the Claims (Not the Abstract)

For each relevant patent, read the independent claims. Does your product include every element of an independent claim? If yes = potential infringement. If missing even one element = not literally infringed (but doctrine of equivalents may still apply).

Step 4

Map Claims to Your Product

Create a claims chart: list each element of the most relevant independent claims in column 1, note whether your product includes that element in column 2. If every element is present, flag the patent as a potential FTO risk.

Step 5

Assess the Risks

For each flagged patent: Is it still in force? In which countries? Who is the owner? Is the claim likely valid? Can your product be redesigned to remove the problematic element?

Decision

Commission a Professional FTO?

If significant risks identified — active patents with claims covering your product — commission a professional FTO before launching. If no risks found, proceed with awareness that your free-tool analysis is preliminary, not exhaustive.

⚠ Pitfalls to Avoid

Reading Abstracts Instead of Claims

Abstracts are marketing summaries. Claims define the legal scope of protection. Your FTO analysis must be based on claim-by-claim comparison, not abstract similarity.

Ignoring Expired or Lapsed Patents

A patent that appeared in your search results may have lapsed 3 years ago. Always verify legal status before flagging a patent as an FTO risk — you may be worrying about a dead patent.

Treating Your Free Analysis as Definitive

A free-tool FTO identifies major risks but cannot replace professional analysis. The doctrine of equivalents, prosecution history estoppel, and claim construction nuances require an attorney's expertise.

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How to Check Freedom to Operate Using Free Tools

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