> 3) Change patent duration by domain. 20 year software patents make no sense (5 year ones seem okay). 5 year patents on e.g. aerospace seem to make no sense (2

> 3) Change patent duration by domain. 20 year software patents make no sense (5 year ones seem okay). 5 year patents on e.g. aerospace seem to make no sense (20 year ones seem okay). One other idea would be to require a working prototype to be demonstrated as part of the filing otherwise the duration of the patent would be halved.