A Survival Analysis on Fuel Cell Technology Patent Maintenance and Values Exploration between 1976 and 2001
Fuel cell R&D activities desirably arrive in patents; the costly maintenance fee challenges managers as well as researchers to whether or not renew existing patents. The key is, will the fuel cell patent’s value be worth renewing? Thus assessment of patent value is essential. Our study focus onl...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Hindawi Limited
2015-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2015/387491 |