Number | Date | Country | Kind |
---|---|---|---|
40 24 659.0 | Aug 1990 | DEX |
This application is a continuation of application Ser. No. 07/983,543 filed on Feb. 3, 1993, now abandoned.
Number | Name | Date | Kind |
---|---|---|---|
1926442 | Guenther et al. | Sep 1933 | |
3575883 | Foley | Apr 1971 | |
3642623 | Bennett et al. | Feb 1972 | |
4374737 | Larson et al. | Feb 1983 | |
4631136 | Jones, III | Dec 1986 | |
4787990 | Boyd | Nov 1988 | |
4839096 | Dennis et al. | Jun 1989 | |
4876017 | Trahau et al. | Oct 1989 | |
5106516 | Mueller | Apr 1992 | |
5194422 | Mueller | Mar 1993 |
Number | Date | Country |
---|---|---|
0070190 | Dec 1983 | EPX |
0070191 | Dec 1985 | EPX |
0302402 | Feb 1989 | EPX |
0302403 | Feb 1989 | EPX |
3842659 | Jun 1990 | DEX |
3842703 | Jun 1990 | DEX |
3903784 | Aug 1990 | DEX |
3903785 | Aug 1990 | DEX |
3907391 | Sep 1990 | DEX |
3907392 | Sep 1990 | DEX |
3911238 | Oct 1990 | DEX |
3911299 | Oct 1990 | DEX |
3915875 | Nov 1990 | DEX |
3915876 | Nov 1990 | DEX |
3916550 | Nov 1990 | DEX |
4003028 | Aug 1991 | DEX |
4018228 | Dec 1991 | DEX |
4019266 | Jan 1992 | DEX |
4024658 | Apr 1992 | DEX |
1338935 | Nov 1973 | GBX |
Entry |
---|
G. R. Gray, H. C. H. Darfley, "Composition and Properties of Oil Well Drilling Fluids", 4th ed., Gulf Publishing Co., 1981, pp. 51, 64, 320 et seg. |
A. J. Stirton, "alpha-sulfo Fatty Acids and Derivatives, Synthesis, Properties and Use, in J. Am. Oil Chem. Soc." 1962, vol. 39, pp. 490-496. |
"Petroleum Engineer International", Sep. 1987, pp. 32-40. |
"World Oil", Nov. 1983, pp. 93-97. |
Bourgoyne et al., "Applied Drilling Engineering", 1986, pp. 75-81. |
Stein & Baumann, "alpha-sulfonated Fatty Acids and Esters: Manufacturing Process, Properties, and Applications", J. Am. Oil Chem. Soc. 1975, 52, pp. 323-329. |
Number | Date | Country | |
---|---|---|---|
Parent | 983543 | Feb 1993 |