| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 13 | |
| #2 | United States | 2 | |
| #3 | Switzerland | 1 | |
| #4 | France | 1 |
| # | Industry | |
|---|---|---|
| #1 | Measurement | |
| #2 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Mechanically-driven clocks | |
| #2 | Time-interval measuring | |
| #3 | Clutches and brakes |
| # | Name | Total Patents |
|---|---|---|
| #1 | Stemmler Ewald | 12 |
| #2 | Keppler Rainer | 1 |
| #3 | Rainer Keppler | 1 |
| #4 | Hans Wanner | 1 |
| #5 | Mederacke Herbert | 1 |
| #6 | Ewald Stemmler | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE2851735A1 | Reverse rotation blocking device for watch self-winding mechanism - comprising roller slid into gap between relatively rotating parts | |
| US3633354A | World-time indicator timepiece | |
| US3636700A | Watch with stopwatch hand |