Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7360970 | Composite masonry block | Michael E. Woolford | 2008-04-22 |
| 7048472 | Composite masonry block | Michael E. Woolford | 2006-05-23 |
| 6616382 | Composite masonry block | Michael E. Woolford | 2003-09-09 |
| D458693 | Retaining wall block | — | 2002-06-11 |
| 6312197 | Composite masonry block | Michael E. Woolford | 2001-11-06 |
| D445512 | Retaining wall block | — | 2001-07-24 |
| 6183168 | Composite masonry block | Michael E. Woolford | 2001-02-06 |
| 6178704 | Splitting technique | — | 2001-01-30 |
| 6142713 | Composite masonry block | Michael E. Woolford | 2000-11-07 |
| 6138983 | Mold for producing masonry block with roughened surface | — | 2000-10-31 |
| 6082057 | Splitting technique | — | 2000-07-04 |
| 6050255 | Splitter blade assembly and station | — | 2000-04-18 |
| 6029943 | Splitting technique | — | 2000-02-29 |
| 5879603 | Process for producing masonry block with roughened surface | — | 1999-03-09 |
| 5827015 | Composite masonry block | Michael E. Woolford | 1998-10-27 |
| 5589124 | Method of forming composite masonry blocks | Michael E. Woolford | 1996-12-31 |
| 5294216 | Composite masonry block | — | 1994-03-15 |
| 5062610 | Composite masonry block mold for use in block molding machines | Michael E. Woolford | 1991-11-05 |
| 5017049 | Composite masonry block | — | 1991-05-21 |