(1) A patentee may grant an exclusive license for the patent to other persons.
(2) An exclusive licensee with the exclusive license shall have the sole right to practice for business purposes the patented invention to the extent prescribed at the grant of the license.
(3) Except in the following cases, no exclusive licensee may transfer the exclusive license, without the consent of the patentee:
1. Where the exclusive license is transferred with the underlying business;
2. Where the exclusive license is transferred by inheritance or other universal succession.
(4) No exclusive licensee may establish a pledge right over the exclusive license or grant a non-exclusive license, without the consent of the patentee.
(5) Article 99 (2) through (4) shall apply mutatis mutandis to exclusive licenses.[This Article Wholly Amended on Jun. 11, 2014]