Patent suits left an indelible mark in the LED industry in 2016, Seoul Semiconductor took the lead this week warning 29 companies over potential patent infringement issues. Nichia also announced it had won two legal YAG patent suits against Everlight in Dusseldorf District Court in Germany and the local appeal court. Cree also has settled a long pending patent infringement case with Feit Electric for an undisclosed amount, and the two companies have signed a patent license agreement.