| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 1,531 | |
| #2 | France | 744 | |
| #3 | Switzerland | 410 | |
| #4 | United Kingdom | 300 | |
| #5 | United States | 260 | |
| #6 | Austria | 237 | |
| #7 | Denmark | 22 | |
| #8 | Netherlands | 18 | |
| #9 | Italy | 17 | |
| #10 | Sweden | 16 | |
| #11 | EPO (European Patent Office) | 15 | |
| #12 | Canada | 9 | |
| #13 | Belgium | 8 | |
| #14 | Spain | 8 | |
| #15 | Finland | 7 | |
| #16 | Japan | 4 |
| # | Industry | |
|---|---|---|
| #1 | Optics | |
| #2 | Electrical machinery and energy | |
| #3 | Civil engineering | |
| #4 | Measurement | |
| #5 | Audio-visual technology | |
| #6 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Cameras | |
| #2 | Locks | |
| #3 | Optical systems | |
| #4 | Measuring light | |
| #5 | Special information storage | |
| #6 | Lighting device details | |
| #7 | Electric discharge tubes | |
| #8 | Photosensitive materials | |
| #9 | Special electric heating or lighting | |
| #10 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Ikon Aktiengesellschaft Zeiss | 180 |
| #2 | Sauer Edgar | 80 |
| #3 | Thiele Heinz | 71 |
| #4 | Taesler Rudolf | 71 |
| #5 | Tietz Werner | 50 |
| #6 | Guenther Willi | 40 |
| #7 | Hahn Johann | 38 |
| #8 | Krumbein Fritz | 37 |
| #9 | Heinz Thiele | 36 |
| #10 | Vierling Dr Otto | 36 |
| Publication | Filing date | Title |
|---|---|---|
| DE3907327A1 | Lock case drive | |
| DE3907325A1 | Multiple locking mechanism | |
| DE3840036A1 | Lock, especially furniture lock | |
| EP0316583A2 | Lock cylinder arrangement | |
| EP0319678A2 | Door plate for fixing of a knob or handle | |
| EP0307347A1 | Device for the protection of a lock | |
| EP0281507A2 | Double-cylinder lock | |
| EP0281505A2 | Key and electronically coded lock | |
| EP0281503A1 | Cabinet lock | |
| EP0286574A1 | Lock for a box | |
| DE3742189A1 | Lock cylinder | |
| EP0264923A2 | Double cylinder lock | |
| DE3734539A1 | DOUBLE CYLINDER LOCK | |
| DE3720550A1 | Multiple-locking device | |
| DE3719311A1 | Lock cylinder | |
| EP0247966A2 | Cylinder lock and key | |
| DE3713653A1 | DOUBLE LOCKING CYLINDER | |
| DE3707201A1 | Double lock cylinder | |
| DE3639588A1 | CYLINDER CORE LOCKING | |
| DE3636163A1 | Double-cylinder lock |