> The patent will expire in a while, and then anyone can do it.

I've read this a couple of times in these comments. However, this "in a while" is meaningless. A quick search suggests plant patents are 20 years from filing of patent. That's not as bad as I was thinking after hearing about the copyright nonsense of 95 years of publication or 120 years from creation depending. That'd be multiple generations of farmers rather than just one.

Yes, I assumed that was common knowledge. 20 years is pretty reasonable.