Monsanto patented the gene in Roundup Ready Soybeans, so when I buy them and plant them, I can't keep any of the produced grain to plant for the next year. This has been taken to the U.S. Supreme Court and the Court sided with Monsanto.
Thanks. So a bit in between. Not legislated by Congress but created as case law in a manner of speaking as an off-shoot of patents and intellectual property rights.