Number | Name | Date | Kind |
---|---|---|---|
3723529 | Pitts et al. | Mar 1973 | |
4347381 | Tuvell | Aug 1982 | |
4463193 | Johnson et al. | Jul 1984 | |
4487987 | Paslean et al. | Dec 1984 | |
4503253 | Ford et al. | Mar 1985 | |
4567303 | Boettger et al. | Jan 1986 | |
4570019 | Gibson et al. | Feb 1986 |
Number | Date | Country |
---|---|---|
44-02209 | Jan 1969 | JPX |
44-04768 | Feb 1969 | JPX |
45-33163 | Oct 1970 | JPX |
48-52708 | Jul 1973 | JPX |
Entry |
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U.S. Ser. No. 674,611 "Polyalkylene Polyamines Via Vapor Phase Reaction" Ford et al. |