반응형 trademark search1 X5. Patent Classification 1. Types of Patent Classifications 1) IPC CODE: International Patent Classification Code is a patent classification system that can be used worldwide. Korea accepts the IPC code as it is and uses it. IPC Code codes the field with the first alphabet (referred to as section), followed by two numbers + one letter to indicate class and sub-class. Finally, the main group and sub group are expressed b.. 2022. 11. 1. 이전 1 다음 반응형