[guelo]

The smart threat would be to put the patent up for auction. The fear of the trolls getting the patent would bring the big guys to the table.

[resu_nimda]

At the end of the article:

“Want to buy the worldwide license to my two-factor-authentication patent? (13 countries incl. US & China) Email: [e-mail],” he concludes.

edit: I may be wrong, is buying "the worldwide license" different from buying the patent?

[smnrchrds]

I guess he means he will license his patents more than one company. In contrast, if he sells all the patent rights, he can't sell them to anyone else and those who want to acquire a license should negotiate with the buyer.

[danielsamuels]

Yes, license would be allowing Google etc to use the method described in the patent (and potentially making money from it), buying the patent would give Google etc the ownership rights and allow them to license it out themselves.