| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| how many patents did thomas edison hold | 0.83 | 0.3 | 9862 | 19 |
| how many patents does thomas edison hold | 1.71 | 0.7 | 1968 | 93 |
| how many patents did edison share | 1.51 | 0.9 | 52 | 80 |
| how many inventions did thomas edison patent | 1.9 | 0.2 | 3848 | 1 |
| list of thomas edison patents | 0.32 | 0.8 | 6824 | 1 |
| patents of thomas edison | 0.76 | 0.2 | 4171 | 12 |
| how many inventions did thomas edison have | 0.31 | 0.8 | 2129 | 94 |
| how many thomas edison inventions | 1.56 | 1 | 4202 | 49 |
| thomas edison patents number | 0.07 | 0.8 | 7341 | 78 |
| how many inventions has thomas edison made | 1.7 | 0.9 | 7403 | 59 |
| thomas edison date of patent | 0.22 | 0.8 | 7762 | 81 |
| who received thomas edison's patent | 0.72 | 1 | 9617 | 58 |
| thomas edison number of inventions | 1.23 | 0.8 | 9794 | 28 |
| what was thomas edison first patent | 1.97 | 0.5 | 8769 | 99 |
