| Number | Date | Country | Kind |
|---|---|---|---|
| 3464/95 | Dec 1995 | CHX | |
| 3465/95 | Dec 1995 | CHX | |
| 1226/96 | May 1996 | CHX | |
| 1688/96 | Jul 1996 | CHX | |
| 2493/96 | Oct 1996 | CHX |
| Number | Name | Date | Kind |
|---|---|---|---|
| 5346902 | Clough et al. | Sep 1994 | |
| 5371084 | de Fraine et al | Dec 1994 | |
| 5387607 | Brand et al. | Feb 1995 | |
| 5563168 | Brand et al. | Oct 1996 |
| Number | Date | Country |
|---|---|---|
| 9178167 | Dec 1991 | AUX |
| 9526710 | May 1996 | AUX |
| 0370629 | May 1990 | EPX |
| 0414153 | Feb 1991 | EPX |
| 0460575 | Dec 1991 | EPX |
| 0463488 | Jan 1992 | EPX |
| 0472300 | Feb 1992 | EPX |
| 0506149 | Sep 1992 | EPX |
| 9007493 | Jul 1990 | WOX |
| 9213830 | Aug 1992 | WOX |
| 9218487 | Oct 1992 | WOX |
| 9218494 | Oct 1992 | WOX |
| 9518789 | Jul 1995 | WOX |
| 9521153 | Aug 1995 | WOX |
| 9521154 | Aug 1995 | WOX |
| 9521156 | Aug 1995 | WOX |
| 9534526 | Dec 1995 | WOX |
| 9611183 | Apr 1996 | WOX |
| 9616026 | May 1996 | WOX |
| 9635669 | Nov 1996 | WOX |
| Entry |
|---|
| Derwent Abstract 97-011705, 1997. |
| Derwent Abstract 95-292864, 1995. |
| Derwent Abstract 95-292863, 1995. |
| Derwent Abstract 95-292862, 1995. |