>it has established in US law that API interfaces themselves are a copyright/protected concept Only in the Federal Circuit, which adjudicates cases involving p

>it has established in US law that API interfaces themselves are a copyright/protected concept Only in the Federal Circuit, which adjudicates cases involving patent law. Copyright cases are typically decided by the other courts of appeal, and there is precedent in those courts (like Lotus v Borland) against the copyrightability of interfaces.