Issued Patents All Time
Showing 1–25 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6994789 | Pre-metered, unsupported multilayer microporous membrane | Richard Sale | 2006-02-07 |
| 6736971 | Pre-metered, unsupported multilayer microporous membrane | Richard Sale | 2004-05-18 |
| 6734012 | Low fluorescence nylon/glass composites for micro-analytical diagnostic applications | Rita Andreoli, Murtaza Y. Amin, Mark Meyering, Richard Chesterson | 2004-05-11 |
| 6733677 | Filter sheet and process for purifying photoresist composition employing the filter sheet | Kenneth C. Hou, Richard Sale | 2004-05-11 |
| 6706184 | Unsupported multizone microporous membrane | Richard Sale | 2004-03-16 |
| 6576139 | Process for purifying photoresist composition employing a filter sheet | Kenneth C. Hou, Richard Sale | 2003-06-10 |
| 6103122 | Filter sheet for purifying photoresist composition | Kenneth C. Hou, Richard Sale | 2000-08-15 |
| 5399264 | Compressible differential pressure energized seals for filter elements and the like | John L. Pulek, Robert G. Barnes, Jr. | 1995-03-21 |
| 5085780 | Use of cationic charge modified filter media | — | 1992-02-04 |
| 5085784 | Use of cationic charge modified filter media | — | 1992-02-04 |
| 5028327 | Filter element | Joseph R. Infantino | 1991-07-02 |
| 5015316 | Filter element | Joseph R. Infantino | 1991-05-14 |
| 4981591 | Cationic charge modified filter media | — | 1991-01-01 |
| 4929354 | Filter element having microporous membrane | Mark Meyering | 1990-05-29 |
| 4859340 | Filter sheet | Kenneth C. Hou | 1989-08-22 |
| 4783262 | Separator for cell type filter element | Arto Artinyan, Robert G. Barnes, Jr. | 1988-11-08 |
| 4731184 | Filter element | Joseph R. Infantino | 1988-03-15 |
| 4725323 | Filter element | Joseph R. Infantino | 1988-02-16 |
| 4711793 | Process for charge modifying a microphorous membrane | Rodney A. Knight, Joseph V. Fiore, George T. Emond, Kenneth C. Hou | 1987-12-08 |
| 4708803 | Liquid filtration using hydrophilic cationic isotropic microporous nylon membrane | Rodney A. Knight, Joseph V. Fiore, George T. Emond, Kenneth C. Hou | 1987-11-24 |
| 4673504 | Charge modified microporous membrane | Rodney A. Knight, Joseph V. Fiore, George T. Emond, Kenneth C. Hou | 1987-06-16 |
| 4645567 | Filter media and method of making same | Kenneth C. Hou | 1987-02-24 |
| 4617128 | Particulate filter aid, filter bed and process | — | 1986-10-14 |
| 4579698 | Process for producing a microporous polymeric filter membrane with adjacent non-porous edge layers and a pleated filter element formed from the membrane | Mark Meyering | 1986-04-01 |
| 4473474 | Charge modified microporous membrane, process for charge modifying said membrane and process for filtration of fluid | Rodney A. Knight, Joseph V. Fiore, George T. Emond, Kenneth C. Hou | 1984-09-25 |