北京大成律师事务所
北京大成律师事务所-
然而，北京大成（上海）律师事务所的专利律师杨宇宙指出，与美国不同，中国承认“实用新型”专利，这类专利一般更容易获得，而且保护发明的期限比标准专利要短一些。
However , Yang Yuzhou , a Shanghai patent lawyer at Dacheng Law , noted that China , unlike the US , recognised " utility model " patents , which are typically easier to secure , and protect inventions for a shorter period of time than standard patents .