Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5972468 | Composites and multi-composites | William L. Welch, Don W. Sluder | 1999-10-26 |
| 5753340 | Composites and multi-composites | William L. Welch, Don W. Sluder | 1998-05-19 |
| 5419529 | Reusable mold for forming premolded pieces and a modular contained machine foundation | William L. Welch, Don W. Sluder | 1995-05-30 |
| 5240223 | Reuseable mold for forming a hollow aggregate filled thermoset article | William L. Welch, Don W. Sluder | 1993-08-31 |