| Number | Date | Country | Kind |
|---|---|---|---|
| 97202595 | Aug 1997 | EPX |
| Number | Name | Date | Kind |
|---|---|---|---|
| 3751569 | Erickson | Aug 1973 | |
| 5244887 | Straub | Sep 1993 | |
| 5502045 | Miettinen | Mar 1996 | |
| 5892068 | Higgins | Apr 1999 | |
| 5958913 | Miettenen | Sep 1999 | |
| 6025348 | Goto | Feb 2000 | |
| 6031118 | van Amerongen | Feb 2000 |
| Number | Date | Country |
|---|---|---|
| 041 303 | Nov 1983 | EPX |
| 209 176 | Jan 1987 | EPX |
| 249 282 | Dec 1987 | EPX |
| 470 658 | Feb 1992 | EPX |
| WO 9219640 | Nov 1999 | FIX |
| 143115 | Sep 1974 | NLX |
| 149687 | Jun 1976 | NLX |
| 155177 | May 1977 | NLX |
| 155436 | Jun 1978 | NLX |
| 178559 | Apr 1986 | NLX |
| 1 405 346 | Sep 1975 | GBX |
| 9338047 | May 1996 | WOX |
| 9742830 | May 1997 | WOX |
| 9819556 | Nov 1997 | WOX |
| 9801126 | Jan 1998 | WOX |
| 9806405 | Feb 1998 | WOX |
| 9828990 | Jul 1998 | WOX |
| Entry |
|---|
| Swern 1979 Bailey's Industrial Gel and Fat Products vol. 1 4.sup.th edition John Wiley & Sons, New York p 413-419. |
| European Search Report dated Dec. 10, 1998. |