| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 8 | |
| #2 | Canada | 6 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Packaging and shipping |
| # | Technology | |
|---|---|---|
| #1 | General building constructions | |
| #2 | Structural elements | |
| #3 | Containers for goods storage | |
| #4 | Roof coverings | |
| #5 | Doors and windows |
| # | Name | Total Patents |
|---|---|---|
| #1 | Sanford Charles L | 14 |
| Publication | Filing date | Title |
|---|---|---|
| US2888820A | Building blocks | |
| US2639607A | Preformed tile and beam floor construction | |
| US2318889A | Partition block | |
| US2104356A | Roof and floor block | |
| US2047890A | Building block | |
| US1933600A | Concrete joist block | |
| CA124632A | Barrel | |
| US979803A | Receptacle. | |
| CA110756A | Rolling pin | |
| US768696A | Shade-roller hanger and adjuster. | |
| CA364103A | Concrete joist block | |
| CA385176A | Roof and floor block | |
| CA367541A | Building block | |
| CA374324A | Block making machine |