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US07949581B2 Method of determining an obsolescence rate of a technology 有权
确定技术过时率的方法

Method of determining an obsolescence rate of a technology
Abstract:
Methods for constructing an estimated depreciated schedule for a patent are disclosed. The steps for constructing this schedule may include: (1) determining a first function which approximately describes the rate of initial increase in expected forward patent citations over time; (2) determining a second function which approximately describes the rate of eventual decay in expected forward patent citations over time; and (3) constructing an estimated depreciation schedule using a calculated decay coefficient derived from said second function.
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