Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9463987 | Methods of making a cell stack for an electrical purification apparatus | Li-Shiang Liang, Joseph D. Gifford, John Chan | 2016-10-11 |
| 9463988 | Electrical purification apparatus having a blocking spacer | Li-Shiang Liang, Joseph D. Gifford, John Chan | 2016-10-11 |
| 9446971 | Techniques for promoting current efficiency in electrochemical separation systems and methods | Li-Shiang Liang, Keng Hoo Yeo | 2016-09-20 |
| D747445 | One piece gasket assembly | Jacob Telepciak | 2016-01-12 |
| 9227858 | Electrical purification apparatus | Li-Shiang Liang, Joseph D. Gifford, John Chan | 2016-01-05 |
| 9187350 | Modular electrochemical systems and methods | Li-Shiang Liang, Keng Hoo Yeo | 2015-11-17 |
| 9187349 | Modular electrochemical systems and methods | Li-Shiang Liang, Keng Hoo Yeo | 2015-11-17 |
| 9139455 | Techniques for promoting current efficiency in electrochemical separation systems and methods | Li-Shiang Liang, Keng Hoo Yeo | 2015-09-22 |
| 9138689 | Method of providing a source of potable water | Li-Shiang Liang, Joseph D. Gifford, John Chan | 2015-09-22 |
| 8956521 | Electrical purification apparatus having a blocking spacer | Li-Shiang Liang, Joseph D. Gifford, John Chan | 2015-02-17 |
| 8741121 | Electrochemical separation modules | Li-Shiang Liang, Keng Hoo Yeo | 2014-06-03 |
| 8627560 | Methods of making a cell stack for an electrical purification apparatus | Li-Shiang Liang, Joseph D. Gifford, John Chan | 2014-01-14 |
| 6490413 | Compact photographic camera | Norman D. Staller, Paul D. Gjeltema, Patrick W. Hopkins, Michael G. Rider | 2002-12-03 |
| 6327431 | Method and system for reducing image artifacts | Harry R. Parsons, Paul D. Gjeltema | 2001-12-04 |
| 5574531 | Method of and apparatus for lighttight transferring of film | — | 1996-11-12 |