Average patent lifespan in months over the past five years
factor.formula
Average patent life in months in the past five years:
Formula explanation:
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The total number of newly authorized valid invention patents within five years before the deadline.
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The grant date of the ith patent (in years).
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The expiration date of the i-th patent (in years). For patents still in effect, this value is the expiration date.
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The life span of the ith patent in months.
factor.explanation
This factor reflects the overall quality and value of a company's patent portfolio. High-quality patents usually have a longer lifespan, and companies are more motivated to maintain their validity to fully tap their commercial value. In contrast, low-quality patents may be abandoned quickly. Therefore, this factor can indirectly measure a company's innovation ability and technological strength, and can be used to assess the company's potential for future earnings. This factor can be used to compare the differences in patent quality among different companies horizontally, or to compare the changes in patent quality of the same company at different times vertically.