| free patents online database | 0.72 | 0.8 | 1496 | 28 | 92 |
| free online patents search database | 0.51 | 0.6 | 4009 | 35 | 84 |
| free patents online patent database | 0.63 | 0.9 | 4586 | 35 | 6 |
| free online patent databases are | 1.43 | 0.4 | 4377 | 32 | 92 |
| where can i find free online patent databases | 0.72 | 0.4 | 9829 | 45 | 67 |
| free patent search database | 1.15 | 0.1 | 9284 | 27 | 87 |
| free patent copies database | 0.7 | 0.7 | 3507 | 27 | 16 |
| us patent download database | 0.58 | 0.9 | 2833 | 27 | 34 |
| uspto online patent database | 1.45 | 0.4 | 7545 | 28 | 22 |
| free online patents information | 1.86 | 0.3 | 987 | 31 | 92 |
| u s patents database | 1.61 | 0.6 | 1040 | 20 | 18 |
| free patents online patent search | 1.72 | 0.6 | 9602 | 33 | 27 |
| free online patents search website | 1.94 | 0.5 | 8906 | 34 | 59 |
| free online patents search | 0.71 | 0.3 | 9336 | 26 | 57 |
| patent database search software | 0.57 | 0.9 | 1553 | 31 | 12 |
| free invention patent database | 0.93 | 0.6 | 5340 | 30 | 16 |
| google patent is a free patent database | 0.55 | 0.6 | 7907 | 39 | 65 |
| united states patent database | 1.32 | 0.2 | 825 | 29 | 92 |
| us patent database search | 0.05 | 0.6 | 4864 | 25 | 52 |
| how to search patent database | 1.32 | 0.4 | 8466 | 29 | 29 |
| patent information and databases | 0.89 | 0.7 | 5228 | 32 | 34 |
