Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6478993 | Method for the manufacture of foamed materials | Vladimir Gontmakher | 2002-11-12 |
| 6368527 | Method for manufacture of foamed perlite material | Vladimir Gontmakher | 2002-04-09 |