Let's say I would like to implement an algorithm.
Let's say this algorithms is patented, but its description is fully accessible.
Let's say I study and replicate it on a software of mine.
Let's say I sell this piece of software and make some money.
I don't want to know if I'm in danger, but... how could the original author discover that my (closed, maybe code-obfuscated) software is using his algorithm?