| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 47 | |
| #2 | France | 11 | |
| #3 | Denmark | 10 | |
| #4 | Spain | 2 | |
| #5 | United States | 2 | |
| #6 | Austria | 1 | |
| #7 | Switzerland | 1 | |
| #8 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Control | |
| #3 | Telecommunications | |
| #4 | Materials and metallurgy |
| # | Name | Total Patents |
|---|---|---|
| #1 | Mueller Dr-Ing Erwin | 13 |
| #2 | Mueller Erwin Dr-Ing | 8 |
| #3 | Koeroes Dipl-Ing Ladislaus | 5 |
| #4 | Mueller Erwin Dr | 2 |
| #5 | Ladislaus Koros | 1 |
| #6 | Koeroes Dipl-Ing Lakislaus | 1 |
| #7 | Erwin Muller | 1 |
| #8 | Koeros Ladislaus Dipl-Ing | 1 |
| #9 | Koeroes Ladislaus | 1 |
| #10 | H Stabilovolt G M B | 1 |
| Publication | Filing date | Title |
|---|---|---|
| ES169853A1 | Provision for the regulation of tensions | |
| ES169783A1 | Gaseous discharge valve for regulations | |
| US2256101A | Glow discharge stabilizer tube | |
| GB511115A | Improvements in glow discharge tubes for voltage regulation | |
| US2212643A | Discharge tube for keeping voltages constant |