| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 12 | |
| #2 | Canada | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machines |
| # | Technology | |
|---|---|---|
| #1 | General building constructions | |
| #2 | Construction of roads | |
| #3 | Swimming pools | |
| #4 | Structural elements | |
| #5 | Unspecified technologies | |
| #6 | Roof coverings |
| # | Name | Total Patents |
|---|---|---|
| #1 | Ruppel Frederick H | 13 |
| Publication | Filing date | Title |
|---|---|---|
| US2703003A | Wall panel | |
| US2684134A | Structural diaphragm for buildings | |
| US2402090A | Ground mat | |
| US2404097A | Ground mat | |
| US2369412A | Lattice mat | |
| US2321860A | Building construction and unit therefor | |
| US2201504A | Roof structure and truss therefor | |
| US2052113A | Structural fabric | |
| US2001215A | Structure | |
| US1983922A | Pipe grooving tool | |
| US2020379A | Fence fabric | |
| US1987312A | Fence structure and method of making the same | |
| CA371230A | Pipe grooving tool |