Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6263533 | Extruded foam reinforcement structures for innerspring assemblies and mattresses | William Freeman | 2001-07-24 |
| 6128798 | Cavitated pad and innerspring assembly combination having springs with free terminal convolutions | Bruce G. Barman | 2000-10-10 |
| 5356446 | Low density insulating and fire-resistant perlite concrete | David A. Smetana, Alfonzo L. Wilson, Richard J. Lenczewski | 1994-10-18 |
| 4974522 | Cold-molded cementitious composites reinforced with surface-modified polyamide fibres and method of preparing same | David A. Holden | 1990-12-04 |