| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Switzerland | 18 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Audio-visual technology | |
| #3 | Machine tools | |
| #4 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Electrically-conductive connections | |
| #2 | Special information storage | |
| #3 | Dynamo-electric machines | |
| #4 | Milling | |
| #5 | Nails | |
| #6 | Spark gaps and corona devices | |
| #7 | Venting or aerating devices |
| # | Name | Total Patents |
|---|---|---|
| #1 | Facondreherei Delta Co Schweiz | 11 |
| #2 | Delta Co Schweizerische Praezi | 6 |
| #3 | Manufactory Of Screws And Turn | 1 |
| #4 | Vis Delta Co Schweizerische Pr | 1 |