Issued Patents All Time
Showing 25 most recent of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11117101 | Selectively permeable graphene oxide membrane | Shijun Zheng, Weiping Lin, Yuji Yamashiro, Isamu Kitahara, John Ericson +5 more | 2021-09-14 |
| 10442709 | Selectively permeable graphene oxide membrane | Shijun Zheng, Isamu Kitahara, Makoto Kobuke, Peng Wang, Yuji Yamashiro +3 more | 2019-10-15 |
| 9731230 | Aeration diffuser for pressurized liquid treatment module and method of operating same | Benjamin Robert Freeman, Ben Weaver, Dan Schuneman, Hailin Ge | 2017-08-15 |
| 8388842 | Brine seal for a filtration device | Irving Shelby, Dirk M. deWinter | 2013-03-05 |
| 8357300 | Methods and materials for selective boron adsorption from aqueous solution | Il Juhn Roh, Mark Wilf | 2013-01-22 |
| 7584061 | Device for measuring permeate flow and permeate conductivity of individual reverse osmosis membrane elements | Mark Wilf, Rich Franks, Norio Ikeyama | 2009-09-01 |
| 7442309 | Methods for reducing boron concentration in high salinity liquid | Mark Wilf, Masahiko Hirose | 2008-10-28 |
| 7378024 | Methods for improving filtration performance of hollow fiber membranes | Uri Papouktchiev | 2008-05-27 |
| 6821430 | Method of treating reverse osmosis membrane element, and reverse osmosis membrane module | Masaaki Andou, Terutaka Watanabe, Masahiko Hirose, Hisao Hachisuka, Mark Wilf +1 more | 2004-11-23 |
| 5445731 | Pervaporation vessel | David Tuohey, Vatsal Mukundlal Shah | 1995-08-29 |
| 5192445 | Membrane suitable for the dehydration of organic oxygenates | — | 1993-03-09 |
| 5152898 | Separation of organic oxygenates | — | 1992-10-06 |
| 5126503 | Membrane process for dewatering lube oil dewaxing solvents | — | 1992-06-30 |
| 5028336 | Separation of water-soluble organic electrolytes | John Reale, Jr. | 1991-07-02 |
| 5009783 | Separation of compositions containing water and organic oxygenates | — | 1991-04-23 |
| 5004861 | Process for pervaporization using membrane separating means | Mordechai Pasternak, John Reale, Jr. | 1991-04-02 |
| 4992176 | Dehydration of organic oxygenates | — | 1991-02-12 |
| 4971699 | Separation of compositions containing water and organic oxygenates | — | 1990-11-20 |
| 4961855 | Dehydration of organic oxygenates | John Reale, Jr. | 1990-10-09 |
| 4960519 | Membrane process for separation of organic liquids | Mordechai Pasternak, John Reale, Jr., Vatsal Mukundlal Shah | 1990-10-02 |
| 4941976 | Dehydration of glycols | John Reale, Jr. | 1990-07-17 |
| 4935144 | Concentration of water-ketone compositions | Mordechai Pasternak, John Reale, Jr. | 1990-06-19 |
| 4910344 | Treatment of compositions containing water and organic oxygenates | Mordechai Pasternak, John Reale, Jr. | 1990-03-20 |
| 4877529 | Separation of organic liquids | Mordechai Pasternak, John Reale, Jr. | 1989-10-31 |
| 4872991 | Treatment of water | Tansukhlal G. Dorawala, Michael T. Stephenson, Mordechai Pasternak, John Reale, Jr. | 1989-10-10 |