Which is the competent authority for patent applications for inventions in Poland?

yes

Polish Intellectual Property Office

English: Patent Office of the Republic of Poland, abbreviation: PPO

Website: uprp.gov.pl

Polish Utility Model Patent Search: Wyszukiwarka prosta (uprp.gov.pl)

• Grant fee: The applicant should pay the granted fee, announcement fee and the first annual fee (that is, the annual fee for the first to third years) within 3 months after receiving the notification of the granted decision.
• Annuity: Pay year by year in the first year from the date of application. Overdue annual fee can be paid within a grace period of 6 months. At the same time, 30% of the year's annual fee will be paid as a late fee.

If disclosed by the author or his successor, the novelty grace period shall be enjoyed within 12 months after the first disclosure.

yes

Polish Intellectual Property Office

English: Patent Office of the Republic of Poland, abbreviation: PPO

Website: uprp.gov.pl

Polish invention patent search: Wyszukiwarka prosta (uprp.gov.pl)

yes

Reinstatement of priority is accepted on grounds of "due care."

2-4 years