Don't worry about the TOO .. TO .. structure since it could be used with several forms: too beautiful TO LIVE, too ugly TO BE COMING to my party, too stupid TO HAVE BEEN BORN.
TO HAVE BEEN INVENTED is the present perfect passive infinitive form. EVER is connected to the verb form, not the adjective.The use of EVER with the present perfect is common especially when thinking about past events that have results in the present.
This form was used to show that whatever the people are talking about it has already been invented at some point in the past. However, the invention could not have happened just by using math. Since I didn't read the whole paper, I'm not sure but I think it means that the inventors also had to use bio-mechanics.
Your example sentences are both correct. The first example is just about the past. However, the second one implies some connection to the present or a result in the present.