Research Article
Enterprise Complementarity Based on Patent Information
| Patent number | CN201310333698.4 | CN200920026108.2 | CN200420052295.9 |
| PCN | F16J9/00 | F16K1/00 | F16K1/00 | Confidence class | 1 | 1 | 1 | Patent similarity | 1.76 | 1.24 | 1.12 | Patent complementarity | 0.12 | 0.38 | 0.44 |
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