| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Switzerland | 3 | |
| #2 | Germany | 2 | |
| #3 | United States | 2 | |
| #4 | Canada | 1 | |
| #5 | France | 1 | |
| #6 | United Kingdom | 1 | |
| #7 | India | 1 | |
| #8 | Japan | 1 | |
| #9 | Netherlands | 1 | |
| #10 | Sweden | 1 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Materials and metallurgy | |
| #3 | Textiles and paper | |
| #4 | Measurement |
| # | Technology | |
|---|---|---|
| #1 | Non-metallic elements | |
| #2 | Spark gaps and corona devices | |
| #3 | Knitting | |
| #4 | Measuring length, angles and areas |
| # | Name | Total Patents |
|---|---|---|
| #1 | Gneupel Arthur | 5 |
| #2 | Gneupel A | 3 |
| #3 | Arthur Gneupel | 2 |
| #4 | Aasaa Niyuuperu | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US4159971A | Ozone generator | |
| DE2634720A1 | Tubular reactor to produce ozone - at high throughput and yield for water sterilisation | |
| DE2606731A1 | Tubular ozone generator e.g. for water sterilisation plants - has cylindrical, helically grooved core located inside inner electrode | |
| US3718114A | Length measuring instrument |