Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6409817 | Fine-celled foam composition and method having improved thermal insulation and fire retardant properties | — | 2002-06-25 |
| 6375735 | Precipitated silicas, silica gels with and free of deposited carbon from caustic biomass ash solutions and processes | Clyde W. Wellen, Jeffrey B. Smith, Kenneth F. Kubiak | 2002-04-23 |