尽管知识产权的产生已有几百年的历史,但是由于社会、历史、文化、经济、政治等原因,各国保护知识产权的法律不尽相同,甚至在一些重要问题上,如保护对象和时间—也存在着差异。本世纪中叶以来,随着科学事业的突飞发展,新技术相继问世,原有的知识产权法很难应付,很难适应新形势的需要。所以不少国家都在考虑或着手对本国法律的修改。由于二十 Although intellectual property has existed for hundreds of years, due to social, historical, cultural, economic and political reasons, the laws of various countries for the protection of intellectual property vary. Even on some important issues such as protection of objects and time - There are also differences. Since the middle of this century, with the rapid development of science and technology, new technologies have come out one after another, and the original intellectual property law can hardly cope with it and can hardly meet the needs of the new situation. Therefore, many countries are considering or starting to amend their laws. Because of twenty