Yiming Sun has studied Electrical Engineering at Tsinghua University in Beijing, Communications Engineering at the Technical University of Munich, Technology Management at the Center for Digital Technology and Management in Munich, Political Science at the Munich School of Political Science, and Patent Litigation in Europe at University Strasbourg. He also has various practical technical experiences in renowned German companies in the industry. 

At the beginning of 2006, Yiming Sun started to receive systematical education and training to become a German Patent Attorney, which includes training work at a famous law firm in the area of intellectual property rights in Munich, the studies of law at a university designated by the Association of German Patent Attorneys, as well as training in the German Patent and Trademark Office, the Federal Patent Court and the District Court of Dusseldorf. After having passed the examinations successfully, in 2009, Yiming Sun became the first German Patent Attorney with Chinese nationality. At the same time, he became the youngest German Patent Attorney in the year of his admission.

After further working experience as German Patent Attorney at a law firm, he founded the firm HUASUN in Munich in 2011. At the beginning of 2015, he also founded the office in China. He is also responsible for the website HUASUN EuroIP Online (www.huasun.org), an Internet platform, which systematically introduces knowledge about German and European Intellectual Property Rights to the Chinese public. 

Yiming Sun represents clients in all kinds of procedures before the German Patent and Trademark Office, the European Patent Office, the European Union Intellectual Property Office and the Federal Patent Court, including procedures relating to the obtention, maintenance, infringement analysis and revocation of patents, trademarks, utility models and designs. The technical specialisation encompasses all fields of electrical engineering, information technology, telecommunication, signal processing and cryptography. Yiming Sun represents both Chinese and German/international clients. He travels to China several times each year and also has good knowledge in Chinese IP system.

He has represented thousands of patent and utility model applications, thousands of designs, and hundreds of trademarks.