| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 4 | |
| #2 | United States | 4 | |
| #3 | Germany | 3 | |
| #4 | Finland | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machine tools | |
| #3 | Materials and metallurgy |
| # | Technology | |
|---|---|---|
| #1 | Structural elements | |
| #2 | Rolling metal | |
| #3 | General building constructions | |
| #4 | Punching metal | |
| #5 | Metal tempering |
| # | Name | Total Patents |
|---|---|---|
| #1 | Johannes Gillberg | 5 |
| #2 | Gillberg Johannes | 2 |
| Publication | Filing date | Title |
|---|---|---|
| GB678776A | A method of manufacturing reinforcing bars having depressed portions and a machine for manufacturing such bars | |
| US2427401A | Reinforcement member | |
| GB606771A | Reinforcement members for floorings, wall structures and the like | |
| GB437568A | Improvements in or relating to wood floor supporting structures | |
| US2070655A | Framework arrangement |