Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7422606 | Medical devices and products having coatings applied thereto | Richard J. Johnson, Dean Laurin, Crystal M. Cunanan | 2008-09-09 |
| 6746482 | Method for producing medical devices and devices so produced | — | 2004-06-08 |
| 6648922 | Method for producing improved medical devices and devices so produced | Richard J. Johnson, Dean Laurin, Crystal M. Cunanan | 2003-11-18 |
| 6306454 | Method for producing improved medical devices and devices so produced | Richard J. Johnson, Dean Laurin, Crystal M. Cunahan | 2001-10-23 |
| 6045701 | Method of filtering a fluid suspension with a membrane having a particular coating | Richard J. Johnson | 2000-04-04 |
| 5972217 | Blood cell separation devices having a membrane with particular coating | Richard J. Johnson | 1999-10-26 |
| 5795483 | Method of separating leukocytes from blood cells using a leukodepletion filter | Richard J. Johnson | 1998-08-18 |
| 5647985 | Whole blood leukodepletion and platelet filter | Richard J. Johnson | 1997-07-15 |