| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 9 | |
| #2 | United States | 3 | |
| #3 | Canada | 1 | |
| #4 | France | 1 |
| # | Industry | |
|---|---|---|
| #1 | Measurement |
| # | Technology | |
|---|---|---|
| #1 | Mechanically-driven clocks |
| # | Name | Total Patents |
|---|---|---|
| #1 | Paul Willi | 8 |
| #2 | Trenkle Eugen | 6 |
| #3 | Friedrich Trenkle Eugen | 3 |
| #4 | Hector Paul Wilhelm | 3 |
| #5 | Paul Wilhelm Hector | 1 |
| #6 | Holzmann Karl | 1 |
| #7 | Allgeier Josef | 1 |
| #8 | Trenkle Eugen Friedrich | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2677228A | Cuckoo movement in cuckoo clocks | |
| US2574703A | Device for releasing acoustical time signals in clocks | |
| US2574704A | Mechanism for cuckoo clocks | |
| CA488510A | Device for releasing acoustical time signals in clocks |