I built something cool at home…but my company says it’s theirs.. Now What?
You finally did it. After work, on weekends, and in those “just one more hour” late nights, you built something genuinely cool at home, a new product design, an app, a device, a process, a logo/brand concept, maybe even a whole side business. Now you hear yourself saying, "I built something cool at home...but my company says it's theirs." That moment is a gut punch. It feels personal. And it can get messy fast—because in many cases, the answer isn’t as simple as “I made it at home, so it’s mine.” Let’s talk about how these disputes really work, what matters, and what you should do next if your company is claiming ownership over your side project. Why your company might claim your side project: Most people assume ownership is obvious: you built it on your couch, on your own laptop, on your own time. But employers often rely on paperwork you signed—sometimes years ago, during onboarding, saying that inventions or creative work related to the company’s business belong to the company. These are commonly called: invention assignment agreements IP assignment clauses proprietary rights agreements confidentiality agreements with “inventions” language And here’s the key: many of them are written broadly on purpose. Some basically try to scoop up anything you create while employed, whether you built it at home or not. Think of it like a fishing net. Some employers use a reasonable net size for “work-related inventions.” Others toss a net so wide it drags half the ocean. The “big factors” that decide who owns what Every case is fact-specific, but these are the issues that usually matter most: 1) What did you sign? This is ground zero. The contract language controls a lot. [...]







