| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| nber patent database | 0.14 | 0.4 | 322 | 9 | 20 |
| nber | 1.84 | 0.6 | 2051 | 45 | 4 |
| patent | 1.84 | 0.1 | 7496 | 21 | 6 |
| database | 0.42 | 0.1 | 8816 | 42 | 8 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| nber patent database | 1.76 | 0.2 | 4936 | 92 |
| nber patent dataset | 1.4 | 0.9 | 7698 | 10 |
| nber patent citation database | 0.87 | 1 | 4549 | 27 |
| nber patent data project | 0.57 | 0.1 | 560 | 14 |
| patent number search database | 0.81 | 0.1 | 2350 | 3 |
| united states patent database | 1.31 | 1 | 2342 | 48 |
| patent citation network analysis | 1.1 | 1 | 6735 | 48 |
| patent usa search by citation | 0.03 | 0.7 | 6241 | 18 |
