Auxiliary instrument for orthodontic treatment is used in a procedure to correct misaligned teeth. L, a private business owner, is a person who manufactures and sells auxiliary instrument for orthodontic treatment and holds a patent for this. G University Industry-Academic Cooperation Entity (herein after G University) requested a trial for invalidation along with various evidences that L's patent involves a research project studied by G University. AIP, which represented L, thoroughly examined G University’s arguments and found that L’s patent could be invalidated because the scope of claims was too broad, and thus, AIP filed a correction trial on behalf of L and finally L was able to overcome G University’s invalidation trial. This case was finally decided not to be invalidated after going through the patent court and the Supreme Court.