| CLEF-IP 2010: Prior Art Retrieval Using the Different Sections in Patent Documents Recent countries visiting this post |  |
 | 4 | United States |
 | 1 | |
 | 1 | Germany |
 | 1 | Japan |
| CLEF-IP 2010: Prior Art Retrieval Using the Different Sections in Patent Documents Recent countries visiting this post | |
| 4 | United States |
| 1 | |
| 1 | Germany |
| 1 | Japan |