| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 143 | |
| #2 | Japan | 5 | |
| #3 | Brazil | 2 | |
| #4 | China | 2 | |
| #5 | South Africa | 2 | |
| #6 | Germany | 1 | |
| #7 | Hong Kong | 1 | |
| #8 | India | 1 | |
| #9 | Sweden | 1 | |
| #10 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Control | |
| #3 | Mechanical elements | |
| #4 | Basic communication technologies | |
| #5 | Machines |
| # | Name | Total Patents |
|---|---|---|
| #1 | Dohnal Dieter | 11 |
| #2 | Bleibtreu Alexander | 9 |
| #3 | Friedrich Werner | 3 |
| #4 | Stenzel Karl | 3 |
| #5 | Deiiteru Doonaru | 3 |
| #6 | Wein Franz | 2 |
| #7 | Bauer Wolfgang | 2 |
| #8 | Bartl Reinhold | 2 |
| #9 | Bleibtreu A | 2 |
| #10 | Kugler Kurt | 2 |
| Publication | Filing date | Title |
|---|---|---|
| BR9103824A | Oil filter, especially for graduating keys of graduating transformers | |
| JPH04229095A | Circuit device for monitoring of make and break with tap switch at load | |
| FR2580859A1 | Contact piece for oil-operated socket selector | |
| FR2541813A1 | Chassis for sliding voltage adjuster of stepped transformers | |
| FR2535125A1 | Contact piece for step-by-step transformer switches | |
| DE1229170B | Contact arrangement for currentless interrupting switch |