http://dywfwwrpxmyaz3cpydemb3k7qw5d5nevat6rpwzqndyj2h2xxf5vibid.onion/notes.html
Interesting idea from a Swiss person: there it's free to start a
legal process - many people challenging a patent costs a lot of money
to the company and/or the patent office, a sort of denial of service
attack. Others' comments were quite sceptical because a) the companies
do have quite a lot of money and b) the first successful defence would
make the other cases clearly wrong.