| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 13 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Locks | |
| #2 | Bolts for doors or windows | |
| #3 | Indexing scheme relating to hinges | |
| #4 | Doors and windows | |
| #5 | Hinges for doors or windows |
| # | Name | Total Patents |
|---|---|---|
| #1 | Belcher Leonard Humphrey | 6 |
| #2 | Garner James Derek | 3 |
| #3 | Patel Anant | 1 |
| #4 | Hatfield Walter Cyril | 1 |
| #5 | Ashcroft Geoffrey | 1 |
| #6 | Singh Raghbir | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB9412001D0 | Security bolt operated by splined key | |
| GB9403282D0 | Door or window fittings | |
| GB9324353D0 | Sashlocks | |
| GB9318045D0 | Garage doors | |
| GB9026126D0 | Lock mechanisms | |
| GB9009520D0 | Locks | |
| GB8907900D0 | Reversible latch bolt assemblies | |
| GB680228A | Improvements in padlocks | |
| GB678167A | Improvements in locks | |
| GB649633A | Improvements in cylinder locks | |
| GB617582A | Improvements in padlocks |