nantong xingchen won the “china patent excellence award” for the fourth time for its environmental protection innovation of polyphenylene ether
latest news: the state intellectual property office released the “23rd china patent award review results”, and nantong xingchen, a subsidiary of sinochem chemical division, won the 23rd china patent excellence award for the fourth time! china patent award is the highest award in the field of intellectual property rights in my country, and it is…

