This application is a continuation-in-part of application Ser. No. 07/500,258 filed 03-27-90 now abandoned.
Number | Name | Date | Kind |
---|---|---|---|
4104039 | Kuri et al. | Aug 1978 | |
4119417 | Heki et al. | Oct 1978 | |
4140499 | Ozaki et al. | Feb 1979 | |
4289505 | Hardison et al. | Sep 1981 | |
4316364 | Spauschus | Feb 1982 | |
4417451 | Spauschus | Nov 1983 | |
4421532 | Sacchetti et al. | Dec 1983 | |
4553983 | Baker | Nov 1985 | |
4639257 | Duckett et al. | Jan 1987 | |
4690695 | Doshi | Sep 1987 | |
4701187 | Choe et al. | Oct 1987 | |
4738691 | Frey | Apr 1988 | |
4772295 | Kato et al. | Sep 1988 | |
4846852 | Schweitzer et al. | Jul 1989 | |
4859216 | Fritsch | Aug 1989 | |
4863492 | Doshi et al. | Sep 1989 | |
4906256 | Baker et al. | Mar 1990 | |
4915838 | Bonne et al. | Apr 1990 | |
4930294 | Meier | Jun 1990 | |
4934148 | Prasad et al. | Jun 1990 |
Number | Date | Country |
---|---|---|
3844326 | May 1989 | DEX |
Entry |
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Daryl L. Roberts & Gordon D. Ching, "Recovery of Freon Gases with Silicone Rubber Membranes", Ind. Eng. Chem. Process Des. Dev., vol. 25, No. 4, 1986, 971-973. |
R. W. Baker et al., "Membrane Research in Energy and Solvent Recovery From Industrial Effluent Streams", DOE report, Nov. 1983, pp. 15-24. |
Number | Date | Country | |
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Parent | 500258 | Mar 1990 |