Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9993775 | Used oil recycling filtration assembly | Liubomyr KUTOWY | 2018-06-12 |
| 6652751 | Intrinsically bacteriostatic membranes and systems for water purification | Carolyn Strlez | 2003-11-25 |
| 5972120 | Extraction of sweet compounds from Stevia rebaudiana Bertoni | Shi-Qiu Zhang, Ashwani Kumar | 1999-10-26 |
| 5624556 | Fluid fractionating stacked permeable membrane assembly | David L. Kelly, Morley Everett Kocken, Bohdan Y. Sawka | 1997-04-29 |
| 5624555 | Fluid fractionating, stacked permeable membrane assembly | — | 1997-04-29 |
| 5002667 | Fluid fractionating, stacked permeable membrane envelope assembly, and a fluid distributing and permeable membrane sealing collar | John D. Hazlett, Thomas W. McCracken, Adam J. Bennett | 1991-03-26 |
| 4999415 | Aromatic polysulfone compounds and their manufacture | Michael D. Guiver | 1991-03-12 |
| 4996271 | Method of manufacturing halogenated aromatic polysulfone compounds and the compounds so produced | Michael D. Guiver | 1991-02-26 |
| 4898698 | Method of casting a porous membrane of polymeric material | Thomas A. Tweedle, André Yves Tremblay | 1990-02-06 |
| 4833219 | Preparation of substituted polysulfones by metalation | Michael D. Guiver, John W. ApSimon | 1989-05-23 |
| 4814088 | Method for the molecular filtration of predominantly aliphatic hydrocarbon liquids | Thomas A. Tweddle, John D. Hazlett | 1989-03-21 |
| 4797457 | Preparation of substituted polysulfones through ortho-metalated intermediates | Michael D. Guiver, John W. ApSimon | 1989-01-10 |
| 4598137 | Polyarylene polyethersulfone ionomers | Michael D. Guiver, John W. ApSimon | 1986-07-01 |
| 4496502 | Method of gelling a gelation shrinkable, polymer casting solution | William L. Thayer, Srinivasa Sourirajan | 1985-01-29 |
| 4461707 | Ultrafiltration and reverse osmosis tubular membrane module | William L. Thayer, Adam J. Bennett, Srinivasa Sourirajan | 1984-07-24 |
| 4451424 | Method of gelling cast, polysulfone membranes | Thomas A. Tweddle, William L. Thayer, Srinivasa Sourirajan | 1984-05-29 |
| 4395130 | Interconnected pumping mechanism | — | 1983-07-26 |
| 4346126 | Method of casting a reverse osmosis or ultrafiltration polymeric membrane | William L. Thayer, Srinivasa Sourirajan | 1982-08-24 |