| Typicality: | 0.520 |
| Saliency: | 0.480 |
| for protecting wellhead equipment | 4 | purpose |
| generally | 3 | degree |
| according to the report | 2 | other |
| patent → relate to → technology | 41 |
| patent → involve → technology | 15 |
| patent → include → technology | 13 |
| patent → refer to → technology | 7 |
| patent → pertain to → technology | 4 |
| patent → relate to → the technology | 3 |
| negative | neutral | positive |
| 0.088 | 0.673 | 0.240 |
| Raw frequency | 83 |
| Normalized frequency | 0.480 |
| Modifier score | 0.700 |
| Perplexity | 279.277 |