Is this for a patent application or something else?
If patent, then the patent office has to decide how to process the patent (foreign patent or domestic patent). They need your contact info and a way to identify you in case someone else says they own this patent in a future court case regarding this patent (infringement claim or review, for example).
1.
a formal written request, typically one signed by many people, appealing to authority in respect of a particular cause.
"she was asked to sign a petition against plans to build on the local playing fields"
synonyms:appeal, round robin, list of signatures/protesters
"about 7,000 people signed a petition objecting to the scheme"
Law
an application to a court for a writ, judicial action in a suit, etc.
"a divorce petition"
verb
verb: petition; 3rd person present: petitions; past tense: petitioned; past participle: petitioned; gerund or present participle: petitioning
1.
present a petition to (an authority) in respect of a particular cause.
"the organization is petitioning the EU for a moratorium on the patent"
synonyms:appeal to, request, ask, call on, entreat, beg, implore, beseech, plead with, make a plea to, pray, apply to, solicit, press, urge, adjure, present one's suit to, importune; rareobsecrate
"human rights activists petitioned the king to release the hunger strikers"