Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6905782 | Tarnish deterring tin coating | Derek E. Tyler, Szuchain Chen, Julius C. Fister | 2005-06-14 |
| 6183886 | Tin coatings incorporating selected elemental additions to reduce discoloration | Szuchain Chen, Julius C. Fister | 2001-02-06 |
| 6136460 | Tin coatings incorporating selected elemental additions to reduce discoloration | Szuchain Chen, Julius C. Fister, Dennis R. Brauer, Arvind Parthasarathi | 2000-10-24 |