| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 9 | |
| #2 | Hungary | 2 | |
| #3 | Poland | 2 | |
| #4 | EPO (European Patent Office) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Shafts | |
| #2 | Structural elements | |
| #3 | Machines for making railways | |
| #4 | General building constructions |
| # | Name | Total Patents |
|---|---|---|
| #1 | Thackray Robert | 8 |
| #2 | Grainger Douglas Herbert | 7 |
| Publication | Filing date | Title |
|---|---|---|
| GB9512764D0 | Beam for E G mine support arches | |
| GB9224130D0 | Beams | |
| GB9219201D0 | Struts | |
| GB9212781D0 | Struts | |
| GB9201305D0 | A clamp for a yieldable support | |
| GB9100191D0 | Yieldable supports | |
| GB8920830D0 | Jointing means | |
| GB8503018D0 | Girder arch and the like jointing member |