Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5772818 | Apparatus for collection and transfer of particles and manufacture thereof | Lewis T. Polk, Jr., Hugh Vartanian, Walker M. Sloan III | 1998-06-30 |
| 5503802 | Apparatus for collection and transfer of particles and manufacture thereof | Lewis T. Polk, Jr., Hugh Vartanian, Walker MacLaughlin Sloan, III | 1996-04-02 |
| 5364597 | Apparatus for collection and transfer of particles | Lewis T. Polk, Jr., Hugh Vartanian, Walker MacLaughlin Sloan, III | 1994-11-15 |
| 5282978 | Specimen processor method and apparatus | Lewis T. Polk, Jr., Todd Bottomley | 1994-02-01 |
| 4508463 | High density dot matrix printer | An Wang | 1985-04-02 |