Number | Name | Date | Kind |
---|---|---|---|
2463188 | Latchum, Jr. | Mar 1949 | |
2797145 | Gilbert et al. | Jun 1957 | |
3635664 | Morimoto | Jan 1972 | |
3686076 | Cupples et al. | Aug 1972 | |
4036939 | Duhayon et al. | Jul 1977 | |
4169054 | Capepello et al. | Sep 1979 | |
4219725 | Groninger | Aug 1980 | |
4222997 | Beecher | Sep 1980 | |
4365969 | Karpov et al. | Dec 1982 | |
4368058 | Crowley et al. | Jan 1983 | |
4382916 | Beecher | May 1983 | |
4462976 | Karger | Jul 1984 | |
4549889 | Yamazaki | Oct 1985 | |
4663145 | Van den Berk et al. | May 1987 | |
4892625 | Shimizu et al. | Jan 1990 | |
4936955 | Dobson et al. | Jun 1990 | |
4980032 | Dobson et al. | Dec 1990 | |
4990321 | Sato et al. | Feb 1991 | |
5236555 | Yuan | Aug 1993 | |
5256374 | De Silva et al. | Oct 1993 | |
5328670 | Hirabayashi et al. | Jul 1994 | |
5354428 | Clark et al. | Oct 1994 | |
5359787 | Mostowy, Jr. et al. | Nov 1994 | |
5374300 | Kaschemekat et al. | Dec 1994 | |
5374327 | Imahashi et al. | Dec 1994 | |
5417955 | Connolly | May 1995 | |
5426944 | Li et al. | Jun 1995 | |
5470421 | Nakada et al. | Nov 1995 | |
5591273 | Tsukamoto et al. | Jan 1997 | |
5632866 | Grant | May 1997 | |
5665208 | Giesselman | Sep 1997 | |
5665902 | Wang et al. | Sep 1997 | |
5670028 | Inaba et al. | Sep 1997 |
Number | Date | Country |
---|---|---|
0640368 | Mar 1995 | EPX |
0792671 | Sep 1997 | EPX |
0861530 | Jan 1998 | EPX |
858 103 | Dec 1952 | DEX |
Entry |
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F. Rodriguez and L. Martinez, Purification of Hydrochloric Acid by Isooctane Extraction, Solvent Extraction and Ion Exchange (A Companion Journal to Separation Science and Technology), vol. 11, No. 2, 1993, pp. 239-257. |
Stephen M. Fine and Philip B. Henderson, What is the Shelf-Life of Electronics Specialty Gases?,Proceedings-Institute of Environmental Sciences, 1996, pp. 62-70. |
T. Jacksier et al., Particle-and Vapor-Phase Contributions to Metallic Impurities in Electronic-Grade Chlorine, Analytical Chemistry, vol. 66, No. 14, Jul., 1994, p. 2279-2284. |