DUROWE DEUTSCHE UHREN ROHWERKE has a total of 34 patent applications. Its first patent ever was published in 1955. It filed its patents most often in France, Germany and Switzerland. Its main competitors in its focus markets measurement, basic communication technologies and electrical machinery and energy are HERMLE & SOHN FRANZ, THOMAS ARTHUR BROWN and KINOSHITA & CO LTD.
# | Country | Total Patents | |
---|---|---|---|
#1 | France | 13 | |
#2 | Germany | 11 | |
#3 | Switzerland | 10 |
# | Industry | |
---|---|---|
#1 | Measurement | |
#2 | Basic communication technologies | |
#3 | Electrical machinery and energy |
# | Technology | |
---|---|---|
#1 | Electromechanical clocks | |
#2 | Mechanically-driven clocks | |
#3 | Time-interval measuring | |
#4 | Amplifiers | |
#5 | AC and DC conversion devices | |
#6 | Generation of oscillations |
# | Name | Total Patents |
---|---|---|
#1 | Zemla Ewald | 15 |
#2 | Ewald Zemla | 10 |
#3 | Egger Josef | 1 |
#4 | Josef Egger | 1 |
#5 | Schoeninger Dipl-Ing Edgar | 1 |
Publication | Filing date | Title |
---|---|---|
DE1166705B | Contactless mechanical oscillator controlled by electronic means as a gear folder of a time-keeping electrical device | |
DE1166101B | Contactless controlled mechanical oscillator as a gear folder of a time-keeping device | |
DE1094667B | Electronic wrist watch | |
DE1078677B | Electrically powered mechanical transducer | |
DE1094666B | Device for stopping the balance wheel of a watch | |
DE1045326B | Contactless controlled vibration system | |
DE1080933B | Time-keeping drive device, especially for the pointer mechanism of electrical clocks | |
DE1008664B | Electric clock | |
DE974504C | Watch | |
DE966290C | Contactless controlled vibration system | |
DE972314C | Electric clock |