Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6920911 | Foundry sand with oxidation promoter | June-Sang Siak, Mei Cai | 2005-07-26 |
| 6901989 | Removing lost foam pattern coating residue from a casting | June-Sang Siak, Mei Cai, Thomas C. Pederson, Sheila Farrokhalaee Kia | 2005-06-07 |
| 6673141 | Foundry sand with oxidation promoter | June-Sang Siak, Mei Cai | 2004-01-06 |
| 6447593 | Foundry sand with oxidation promoter | June-Sang Siak, Mei Cai | 2002-09-10 |
| 5996682 | Method of making a mold for metal casting | Mei Cai, June-Sang Siak, Richard Michael Schreck | 1999-12-07 |