| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 5 | |
| #2 | Belgium | 4 | |
| #3 | France | 2 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machine tools |
| # | Technology | |
|---|---|---|
| #1 | Shafts | |
| #2 | Foundations and excavations | |
| #3 | Making screws | |
| #4 | Making forged metal products | |
| #5 | Earth drilling |
| # | Name | Total Patents |
|---|---|---|
| #1 | Koepe Arnold | 10 |
| Publication | Filing date | Title |
|---|---|---|
| GB191021402A | Improved Process for Solidifying Soil by Means of Bore Holes. | |
| GB191016986A | Method of Petrifying in Sections Water-bearing Strata. | |
| GB190927213A | Improvements in Means for Threading Thin-walled Tubes. | |
| GB190924473A | Method of Laying Underground Pipes. | |
| GB190919744A | Improvements in and relating to the Sinking of Shafts. |