Genetic engineering has come a long ways now form it's humble beginnings with Dolly to artificial organs, it's only a matter of time before we are making brand new animals to use for circuses, sports or pets. Of course companies would want to patent the design they put years into making but considering that animals are infinitely complex in design how could they? Ignoring all the problems with playing god, how would the genetic engineering companies patent a biological blueprint and have it hold up in court?
Actually, it's already happening today.
Pharmaceutical companies often ask for people with certain conditions to participate in studies, etc. in order to help that company develop a drug or method of treatment. What the participants don't realize however is that they are unwittingly signing away the rights to their own DNA.
What some companies are doing now is identifying certain genes which cause an illness, or even a benefit and then patent them as the "discoverers".
What this means is that each of us are walking around with genes in our DNA which a company owns.
There have been trials over how a company can possibly own our DNA, and their argument was that they are the ones who put the effort into discovering that that particular gene causes an issue or benefit.
I'm sure this will become a much, much bigger deal in the near future.