无形资产评估业的历史只有40多年。60年代中期以前，国外把各种无形资产统称为商誉进行评估。60年代中期以后，在各类产权变动、交易、财产税的征收、保险和银行担保中逐步把无形资产分门别类地进行评估。国际上无形资产评估尚是一门不精确的科学。据介绍，在一般情况下，评估 The history of intangible assets assessment industry only 40 years. Before the mid-1960s, various intangible assets abroad were collectively referred to as goodwill. After the mid-1960s, various types of property rights, transactions, collection of property taxes, insurance and bank guarantees were gradually evaluated intangible assets in different categories. International assessment of intangible assets is still an inaccurate science. According to reports, in general, assessment