| Reg. No. | Trademark text | Type | State | Date |
|---|
| 2822039/- | bt bt bt bt | O | CTM registered | 8.8.2002 |
| 2822047/- | bt bt bt bt | O | CTM registered | 8.8.2002 |
| 165097/241438 | E.BERK | K | Platný dokument | 7.3.2001 |
| 2140044/- | LOTTE BERK | S | CTM registered | 21.9.2000 |
| 7456221/- | Van den Berk | S | CTM application pending publication | 11.12.2008 |
| 426392/277640 | TECHNOLOGIE BERK | S | Platný dokument | 16.5.2005 |
| 2069284/- | NET CLEAR A BERK-TEK / ORTRONICS ALLIANCE | O | CTM registered | 2.2.2001 |
| 133902/221348 | BT BENTIME | K | Platný dokument | 25.6.1998 |
| 163870/242100 | BT BENTIME | K | Platný dokument | 1.2.2001 |
| 4273538/- | BT OPENZONE | S | CTM registered | 4.2.2005 |
| 4273595/- | BT Openzone | O | CTM registered | 3.12.2004 |
| 3494614/- | AUTOCOAT BT | S | CTM registered | 31.10.2003 |
| 4213427/- | BT ONE VOICE | S | CTM registered | 22.12.2004 |
| 3723533/- | BT VIDEOTONES | S | CTM registered | 23.3.2004 |
| 90230/190561 | BT FILTER EXPORT | K | Zaniklý dokument | 31.5.1994 |
| 126547/- | BT FILTER EXPORT | K | Negativně ukončená po podání | 22.10.1997 |
| 3700408/- | BT WHO WEARS WINS | O | Zpětvzetá přihláška | 9.3.2004 |
| 3700457/- | BT WHO BARES WINS | O | Zpětvzetá přihláška | 9.3.2004 |
| 3962743/- | BT WOLFGANG BINDER | O | CTM registered | 5.8.2004 |
| 94079/196192 | BT BARVY TEBAS S.R.O. | K | Platný dokument | 11.11.1994 |