| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 16 | |
| #2 | United States | 5 | |
| #3 | Taiwan | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machines | |
| #3 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Unspecified technologies | |
| #2 | Bolts for doors or windows | |
| #3 | Indexing scheme relating to hinges | |
| #4 | Wing fittings | |
| #5 | Locks | |
| #6 | Unspecified technologies | |
| #7 | Springs |
| # | Name | Total Patents |
|---|---|---|
| #1 | Wartian George | 22 |
| Publication | Filing date | Title |
|---|---|---|
| US2006272124A1 | Control assembly for a door closer | |
| CA2426636A1 | Door holder | |
| CA2403443A1 | Door latch mechanism | |
| CA2387224A1 | Latch and lock mechanism | |
| US2003084539A1 | Door holder assembly | |
| CA2212298A1 | Door latch operator | |
| CA2160977A1 | Door closing apparatus | |
| CA2160096A1 | Door Latch Operating Mechanism | |
| US5157806A | Door closing piston-cylinder assembly | |
| CA2033549A1 | Door handle and latch | |
| US5029913A | Door latch | |
| US4864835A | Door latch mechanism | |
| CA694175A | Door latch and lock | |
| CA676472A | Sliding door latch | |
| CA706070A | Door closer | |
| CA914443A | Latch |