As with all things, it's a mixed bag. See work by Mossoff, Zorina Khan, Petra Moser, etc for historical analysis of how patents influenced invention. It's not a

As with all things, it's a mixed bag. See work by Mossoff, Zorina Khan, Petra Moser, etc for historical analysis of how patents influenced invention. It's not all good, but it's not all bad either. Will try to find some refernces when I'm not on a mobile device.