| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 5 | |
| #2 | Switzerland | 4 | |
| #3 | Spain | 4 | |
| #4 | France | 3 | |
| #5 | Canada | 1 | |
| #6 | Germany | 1 | |
| #7 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Control | |
| #2 | Civil engineering | |
| #3 | Electrical machinery and energy | |
| #4 | Medical technology | |
| #5 | Textiles and paper |
| # | Technology | |
|---|---|---|
| #1 | Alarm systems | |
| #2 | Locks | |
| #3 | Electric incandescent lamps | |
| #4 | Object sterilising | |
| #5 | Cables and insulators | |
| #6 | Artificial filament production devices |
| # | Name | Total Patents |
|---|---|---|
| #1 | Bloch Alfred | 14 |
| #2 | Bernt Oneson Irving | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB191312467A | Valveless Suction Pump for Ice-making Machines. | |
| GB191101707A | Electric Incandescent Lamp with Interchangeable Carrier for the Filaments. | |
| CA124000A | Electric burglar alarm | |
| GB191002824A | Improvements in Electromagnetic Apparatus for Burglar Alarm and like Systems. | |
| GB190924076A | Improvements in or relating to Cable Connections for Electric Burglar Alarms and the like Apparatuses. | |
| US913684A | Electric burglar-alarm. | |
| GB190620456A | Improvements in or connected with Electric Alarm Devices for Notifying Attempts at Breaking or Opening Locks. |