Number | Name | Date | Kind |
---|---|---|---|
3307631 | Coberly et al. | Mar 1967 | |
3313346 | Cross | Apr 1967 | |
3346045 | Knapp et al. | Oct 1967 | |
3559905 | Palynchuk | Feb 1971 | |
3724567 | Smitherman | Apr 1973 | |
3841407 | Bozeman | Oct 1974 | |
4050384 | Chapman | Sep 1977 | |
4071086 | Bennett | Jan 1978 | |
4095655 | Still | Jun 1978 | |
4112850 | Sogel-Gfeller | Sep 1978 | |
4141414 | Johansson | Feb 1979 | |
4177734 | Rhoden | Dec 1979 | |
4192380 | Smith | Mar 1980 | |
4223737 | O'Reilly | Sep 1980 | |
4244296 | Vertut | Jan 1981 | |
4369713 | Richardson | Jan 1983 | |
4372161 | de Buda et al. | Feb 1983 | |
4403551 | Slight | Sep 1983 | |
4463814 | Heretmeyer | Aug 1984 | |
4522129 | Jerberyd | Jun 1985 | |
4537136 | Douglas | Aug 1985 | |
4558751 | Huffaker | Dec 1985 | |
4654102 | Tolino et al. | Mar 1987 | |
4686653 | Staron et al. | Aug 1987 | |
4770105 | Takagi et al. | Sep 1988 | |
4838170 | Illakowicz | Jun 1989 | |
4862808 | Hedgcoxe et al. | Sep 1989 | |
4919223 | Egger et al. | Apr 1990 | |
4940095 | Newman | Jul 1990 | |
4981080 | Elstone, III | Jan 1991 | |
5018451 | Hapstack | May 1991 | |
5060737 | Mohn | Oct 1991 | |
5080020 | Negishi | Jan 1992 | |
5121694 | Zollinger | Jun 1992 | |
5142989 | Suzumori et al. | Sep 1992 | |
5142990 | Leonard | Sep 1992 | |
5172639 | Wiesman et al. | Dec 1992 | |
5184676 | Graham et al. | Feb 1993 | |
5220869 | Pelrine et al. | Jun 1993 | |
5272986 | Smart | Dec 1993 | |
5293823 | Box | Mar 1994 | |
5309844 | Zollinger | May 1994 | |
5375530 | Zollinger et al. | Dec 1994 | |
5388528 | Pelrine et al. | Feb 1995 | |
5392715 | Pelrine | Feb 1995 | |
5435395 | Connell | Jul 1995 | |
5515925 | Boychuk | May 1996 |
Number | Date | Country |
---|---|---|
0149528 | Oct 1985 | EPX |
302390.5 | Oct 1993 | EPX |
2282170 | May 1993 | GBX |
Entry |
---|
"Coiled Tubing Services," Nowsco, 1995. |
"Welltec Well Tractors," Welltec, 1995. |
PCT/GB9 7/01868 PCT, Mar. 1997, Int'l Search Report (This is a PCT counterpart of the present US Application). |