Number | Name | Date | Kind |
---|---|---|---|
2963918 | Blakstad | Dec 1960 | |
4285676 | Kraft | Aug 1981 | |
4457741 | Hoeptner, III | Jul 1984 | |
4472161 | Ojima | Sep 1984 | |
4509935 | Foster et al. | Apr 1985 | |
4696664 | Wilson | Sep 1987 | |
4828536 | Ampferer | May 1989 | |
4934984 | Ojima | Jun 1990 | |
5109813 | Trzmiel et al. | May 1992 | |
5117786 | Trzmiel et al. | Jun 1992 | |
5197420 | Arnold et al. | Mar 1993 | |
5246404 | Ojima | Sep 1993 | |
5277666 | Kumm | Jan 1994 | |
5318397 | Junkers | Jun 1994 | |
5323739 | Mollers | Jun 1994 | |
5439420 | Meckstroth et al. | Aug 1995 | |
5597367 | Trzmiel et al. | Jan 1997 | |
5606941 | Trzmiel et al. | Mar 1997 | |
5720683 | Patton | Feb 1998 | |
5797817 | Senftleben et al. | Aug 1998 |
Number | Date | Country |
---|---|---|
4203449 | Aug 1993 | DEX |
Entry |
---|
European Search report, EP 98 30 8037, dated Feb. 4, 1999. |