Latest / The Founder's Journey with Fexingo: First-Time Entrepreneurs, Failures, and Lessons Learned
How a Founder Used a Rejected Patent to Build a 10M Business
Episode 66 of The Founder's Journey tells the story of Sarah Chen, a materials engineer who filed a patent for a biodegradable food container in 2019. The patent was rejected — the examiner cited prior art from a 1970s Japanese design. Instead of giving up, she reverse-engineered the old patent's weakness: the container degraded too quickly in humid conditions. She added a moisture barrier layer made from rice husk ash, a waste product from rice milling. She refiled with a narrower claim, got the patent in 2020, and launched GreenVessel. By 2024, the company had $10 million in…
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