Can Open‑Source Licenses Shield You from Patent Risks? A Real‑World Case Study

The article recounts a case where a student created the GPL‑2.0‑licensed BlocklyPi visual programming tool for Raspberry Pi, only to discover a later patent with a similar name, prompting concerns about GPL violation and patent infringement.

Legal counsel clarified that the patent’s description does not match the software, and because the software was released earlier, it cannot be deemed infringing; copyright protects the code, while patents protect design ideas.

Question 1: What is the relationship between licenses and patents?

Licenses are copyright agreements. Chinese courts treat GPL as a contract, meaning open‑source licenses govern copyright, not patents. Copyright automatically protects source code; patents require a formal application and protect higher‑level technical concepts.

Copying code infringes copyright, but copying a software idea to obtain a patent is not itself infringement.

Most open‑source licenses do not address patents unless they contain explicit patent clauses, such as Apache License 2.0, which includes a grant of patent rights:

3. Grant of Patent License. Subject to the terms and conditions of this License, each Contributor hereby grants to You a perpetual, worldwide, non‑exclusive, no‑charge, royalty‑free, irrevocable patent license to make, have made, use, offer to sell, sell, import, and otherwise transfer the Work, ...

Question 2: How to protect your open‑source ideas if someone patents them?

Contributors can file patents on their own innovations, but third parties may also patent similar ideas. If you discover a patent that covers your open‑source work, you can negotiate for withdrawal or request a patent invalidation by presenting prior‑art evidence.

Question 3: Should you worry about infringing patents?

In the presented case, the earlier release of the software means there is no infringement risk. However, if a patent covers a technical solution embodied in your code, the risk is similar to that faced by proprietary software.

Defensive patent pools like the Open Invention Network (OIN) provide a “patent wall” for Linux‑related projects, offering cross‑licensing of thousands of patents to deter litigation.

Large companies may use patents strategically, but individual developers generally do not need to invest heavily in patent research or fear lawsuits.

Interview guest: Lawyer Deng Chao, IP specialist. Contact: 18611123013