Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8747543 | PCC filler composition for improved printability of supercalendered papers | David Smith, Harry John Huhn, III, Marko Pohjolainen, Joseph A. Sohara | 2014-06-10 |
| 7387769 | Method and apparatus for continuous gas liquid reactions | — | 2008-06-17 |
| 6454907 | Method and apparatus for concentrating slurried solids | — | 2002-09-24 |
| 6451268 | Method and apparatus for continuous gas liquid reactions | — | 2002-09-17 |
| 4263024 | Air cleaning device | Edward L. Vander Velden | 1981-04-21 |