| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 4 | |
| #2 | Australia | 2 | |
| #3 | Spain | 2 | |
| #4 | Greece | 2 | |
| #5 | Japan | 2 | |
| #6 | New Zealand | 2 | |
| #7 | United States | 2 | |
| #8 | South Africa | 2 | |
| #9 | Canada | 1 | |
| #10 | Germany | 1 | |
| #11 | Denmark | 1 | |
| #12 | EPO (European Patent Office) | 1 | |
| #13 | Finland | 1 | |
| #14 | France | 1 | |
| #15 | Hong Kong | 1 | |
| #16 | Ireland | 1 | |
| #17 | India | 1 | |
| #18 | Republic of Korea | 1 | |
| #19 | Malaysia | 1 | |
| #20 | Netherlands | 1 | |
| #21 | Norway | 1 | |
| #22 | Portugal | 1 | |
| #23 | Sweden | 1 | |
| #24 | Singapore | 1 | |
| #25 | Yugoslavia (Serbia and Montenegro) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Wing fittings | |
| #2 | Indexing scheme relating to hinges | |
| #3 | Unspecified technologies | |
| #4 | Hinges for doors or windows | |
| #5 | Bolts for doors or windows |
| # | Name | Total Patents |
|---|---|---|
| #1 | Chaddock Dennis Hilliar | 8 |
| #2 | Jenkins Albert Edward | 5 |
| #3 | Jenkins A | 2 |
| #4 | Chaddock Dennis H | 2 |
| #5 | Ford Albert William | 2 |
| #6 | Chaddock D | 2 |
| #7 | Ford A W | 1 |
| #8 | Chaddock H D | 1 |
| #9 | Arubaato Edowaado Jienkinsu | 1 |
| #10 | Denisu Hiria Chiyadotsuku | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB8320013D0 | Door and window fittings | |
| IE800525L | Door closer | |
| GB2044840A | Door closer | |
| US4102006A | Door closer | |
| ZA7604458B | Door closer | |
| GB1316268A | Bolt mechanisms | |
| GB1044911A | Improvements relating to hinged doors, panels and the like |