[pfdietz]

And it's fine to patent specific (and novel) varieties of potato. The patent just applies to that specific variety, not to the general concept of improving potatoes. It's irrelevant that other specific varieties may have been bred for millenia.

[bob29]

So PepsiCo can utilize others prior breeding work, but prevents others from using their variety’s to breed with ?

If everyone who bred a potato patented it, we all suffer as breeders would be limited in what they can work with.

http://www.jwz.org