| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 8 | |
| #2 | United States | 4 | |
| #3 | EPO (European Patent Office) | 3 | |
| #4 | Australia | 2 | |
| #5 | Canada | 2 | |
| #6 | South Africa | 2 | |
| #7 | Denmark | 1 | |
| #8 | Mexico | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Civil engineering | |
| #3 | Machine tools |
| # | Technology | |
|---|---|---|
| #1 | Unspecified technologies | |
| #2 | Machines for making railways | |
| #3 | Turning | |
| #4 | Workshop equipment | |
| #5 | Unspecified technologies | |
| #6 | Multi-purpose tools |
| # | Name | Total Patents |
|---|---|---|
| #1 | Stych Ralph | 11 |
| #2 | Merrill Derrick | 5 |
| #3 | Wood Brian Henderson | 3 |
| #4 | Rixham Nicholas Andrew | 1 |
| #5 | French Edward M | 1 |
| #6 | Wood Brian H | 1 |
| #7 | Ralph Stych | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB201403858D0 | Drilling machine | |
| GB201403857D0 | Annular cutting bit | |
| GB9705931D0 | Rail drilling machines and formers therefor | |
| GB9605454D0 | Drilling machine | |
| US5246318A | Annular hole cutter | |
| US5126643A | Control system for hole cutting machines | |
| GB8921828D0 | Annular hole cutter | |
| GB8823829D0 | Countersink bit. | |
| GB8725087D0 | Drilling machines |