I don't think there is a member who think Edelbrock reinvented anything. Their head was sold as a direct replacement for a stock head, that'd be hard to do if you moved the rockers, changed exhaust & intake bolt pattern and port locations. They did make improvements though, smaller stem valves, better chambers and the ports, ootb they flow about what ported X or J heads will.
Would you be okay if someone copied your port work and started cnc porting heads?