Patendikaitse ulatus määratakse kindlaks patendinõudluse sisuga. Patendinõudluse tõlgendamisel kasutatakse leiutiskirjeldust, jooniseid ja muud illustreerivat materjali.
Leiutise olemus esitatakse patendinõudluses leiutise oluliste tunnuste kogumina. Patendinõudlus on ühe- või mitmepunktiline.
The certificate shall be invalid if: ... (c) the basic patent is revoked or limited to the extent that the product for which the certificate was granted would no longer be protected by the claims of the basic patent or, after the basic patent has expired, grounds for revocation exist which would have justified such revocation or limitation.
