| Number | Date | Country | Kind |
|---|---|---|---|
| 199 37 386 | Aug 1999 | DE |
| Number | Name | Date | Kind |
|---|---|---|---|
| 5626836 | Liu et al. | May 1997 | A |
| 6207778 | Jachowicz et al. | Mar 2001 | B1 |
| Number | Date | Country |
|---|---|---|
| 44 01 708 | Jul 1995 | DE |
| 196 42 622 | Apr 1998 | DE |
| 198 05 434 | Aug 1999 | DE |
| 0 074 191 | Mar 1983 | EP |
| 0 524 346 | Jan 1993 | EP |
| 0 535 429 | Jul 1993 | EP |
| 2 403 076 | Sep 1977 | FR |
| 9500104 | Jan 1995 | WO |
| 9606592 | Mar 1996 | WO |
| 9619971 | Jul 1996 | WO |
| Entry |
|---|
| Computer Printout from the Company STN File CBNB, AN 14 (17): 24036, (1998). |
| Volumen Kommt und Bleibt! In Business Report 19, Feb. 2001. |