| Date | Number | Invoked mark | Contested mark Sort descending | Fil. no. | Decision | Language | Status |
|---|---|---|---|---|---|---|---|
| 2001047 | X4-LIFE | XI3 | 900658 | Rejected | FR | Definitive | |
| 2018497 | XIAURA | Xiara | 1471416 | Awarded | NL | ||
| 2002298 | TYNTEC | XINTEC | 1144382 | Rejected | FR | Definitive | |
| 2011498 | OXXO | XO | 1321378 | Rejected | EN | Definitive | |
| 2004080 | MUMM | Xumm | 1176379 | Awarded | NL | Definitive | |
| 2016364 | XOOM | XUMM | 1421598 | Awarded | NL | Definitive | |
| 2000904 | RUMITAG | Y-tag | 1113384 | Rejected | NL | Definitive | |
| 2004519 | KAZOU | YAKAZOO | 1182267 | Partially awarded | FR | Definitive | |
| 2006154 | XANGO | Yango | 1216680 | Partially awarded | NL | Definitive | |
| 2006390 | JASPARO | YASPAR | 1219243 | Rejected | NL | Definitive | |
| 2004908 | Yello | YELLO | 1194138 | Partially awarded | NL | Definitive | |
| 2007526 | YELLOW PAGES | YELLOW | 1242115 | Rejected | NL | Definitive | |
| 2004131 | Yello | YELLOW & BLUE | 1179358 | Awarded | NL | Definitive | |
| 2004022 | Yello | YELLOW ENERGY | 1174748 | Awarded | NL | Definitive | |
| 2009552 | yello | YELLOW IDEAS | 948283 | Awarded | FR | Appeal | |
| 2004365 | YELLOW PAGES | YELLOW LU | 1180049 | Rejected | FR | Appeal | |
| 2007527 | YELLOW PAGES | YELLOW MOBILE | 1242116 | Rejected | NL | Definitive | |
| 2011641 | yello | YELLOW MOTOR OIL | 1323712 | Awarded | NL | Definitive | |
| 2004367 | YELLOW PAGES | yellow.lu | 1180013 | Rejected | FR | Appeal | |
| 2013262 | yello | YELLOWLINE PLUS | 1353673 | Awarded | NL | Definitive | |
| 2015249 | yello | yellowshape | 1392180 | Awarded | NL | Definitive | |
| 2000667 | yello | YELLOWSPOT | 1114337 | Awarded | NL | Definitive | |
| 2008607 | yello | YELLOWTAC | 1264149 | Awarded | NL | Definitive | |
| 2014778 | YES | YESIDO | 1434010 | Awarded | EN | Definitive | |
| 2014111 | YES | Yesido | 1369331 | Partially awarded | NL |
Invoked mark: ABM/MNC = Algemeen bekend merk / Marque notoirement connue