Is China a global innovation powerhouse?

Jaaja(Thailand)

China still has way too many restrictions for foreign companies and individuals to bring their products, services and innovations to the country in timely manner in order to get the protection by patenting something here. I'm no expert in this field, but I dare guess that many of patented innovations in modern China are copied from somewhere else, perhaps even already patented under some other jurisdiction.

Two technicians inspect a high-speed train's wheels at a maintenance shed in Nanjing, Jiangsu province. [Photo provided to China Daily]