| for 20 years | 28 | temporal |
| in the first place | 20 | temporal |
| of its own motion | 20 | other |
| patent → be → valid | 1586 |
| patent → be found → valid | 63 |
| patent → be considered → valid | 14 |
| patent → be deemed → valid | 9 |
| patent → be determined to be → valid | 8 |
| patent → be deemed to be → valid | 5 |
| negative | neutral | positive |
| 0.184 | 0.646 | 0.170 |
| Raw frequency | 1685 |
| Normalized frequency | 0.916 |
| Modifier score | 0.716 |
| Perplexity | 174.642 |