Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5435918 | Solvent extraction process involving membrane separation of extract phase and/or intermediate zone phase | Adrianus Welmers | 1995-07-25 |
| 5234597 | Solvent extraction process involving membrane separation of extract phase and/or intermediate zone phase with pseudo extract/pseudo raffinate recycle, preferably employing interfacially polymerized membranes | Adrianus Welmers | 1993-08-10 |
| 5173191 | Interfacially polymerized membranes for the reverse osmosis separation of organic solvent solutions | — | 1992-12-22 |
| 4962271 | Selective separation of multi-ring aromatic hydrocarbons from distillates by perstraction | Robert C. Schucker | 1990-10-09 |
| 4885096 | Aromatics - non-armoatics separation by permeation through thermally crosslinked nitrile rubber membranes | — | 1989-12-05 |
| 4857201 | Reverse osmosis cellulose and cellulosic membranes prepared by repeated drying and rewetting | Wan-Kei Wan | 1989-08-15 |
| 4802987 | Selective permeation of aromatic hydrocarbons through polyethylene glycol impregnated regenerated cellulose or cellulose acetate membranes | — | 1989-02-07 |
| 4606903 | Membrane separation of uncoverted carbon fiber precursors from flux solvent and/or anti-solvent | Mahmoud M. Hafez | 1986-08-19 |
| 4571444 | Process for separating alkylaromatics from aromatic solvents and the separation of the alkylaromatic isomers using membranes | Heather A. Boucher | 1986-02-18 |
| 4532029 | Aromatic solvent upgrading using membranes | Peter G. Miasek, Georges Adriaens | 1985-07-30 |