(1) If a person referred to in either of the following engages, or prepares to engage, in a business of practicing an invention before a transfer of the relevant patent is registered under Article 99-2 (2), without knowing that the relevant patent falls under the main clause of Article 133 (1) 2, the person shall have a non-exclusive license for the patent within the scope of the invention that the person practices or prepares to practice and the extent of the objectives of the business in which the person engages or prepares to engage:
1. The original patent holder of the patent the transfer of which has been registered;
2. A person who has already acquired an exclusive or non-exclusive license for the patent the transfer of which was registered or a non-exclusive license for such exclusive license before the time of registration of the transfer and has the license registered: Provided, That a person who acquires a non-exclusive license under Article 118 (2) needs not register the license.
(2) A person who holds a non-exclusive license under paragraph (1) shall pay a reasonable price to the holder of the patent the transfer of which has been registered.[This Article Newly Inserted on Feb. 29, 2016]