| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 9 | |
| #2 | Canada | 5 | |
| #3 | Spain | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Machine tools | |
| #3 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Shaping clay | |
| #2 | Shaping of plastics | |
| #3 | Punching metal | |
| #4 | Preparing clay | |
| #5 | Scaffolding |
| # | Name | Total Patents |
|---|---|---|
| #1 | Borst Frank A | 9 |
| #2 | Grogg Isaac | 2 |
| #3 | Addicks Diedrich C | 1 |
| #4 | Allen Eugene D | 1 |
| #5 | Brandell Claus O | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US1023920A | Core-actuator. | |
| CA130454A | Scraper for block machines | |
| US986459A | Scraper for block-machines. | |
| US961332A | Mold-press. | |
| CA105575A | Mould mechanism | |
| US848626A | Rocking mechanism for building blocks and bricks. | |
| CA105150A | Concrete mixer | |
| US853623A | Concrete-mixer. | |
| CA102400A | Mould for blocks | |
| CA102401A | Mould for building blocks | |
| US850206A | Dividing-plate for block-molds. | |
| US837662A | Building-block-mold core. | |
| US817413A | Sill and lintel machine. | |
| US812916A | Adjustable face-plate. |