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WITTE & CO STEPHAN

Overview
  • Total Patents
    41
About

WITTE & CO STEPHAN has a total of 41 patent applications. Its first patent ever was published in 1949. It filed its patents most often in Germany, France and Belgium. Its main competitors in its focus markets thermal processes, electrical machinery and energy and measurement are CHARLES REGINALD BELLING, BACKER ELECTRIC COMPANY LTD and POLARIS FABRIKKER AS.

Patent filings per year

Chart showing WITTE & CO STEPHANs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Hellmann Donald 11
#2 Stork Heinrich 9
#3 Riemer Christian 6
#4 Stork H 5
#5 Hellmann D 4
#6 Riemer C 3
#7 Kirchhoff Jochen F Dr Ing 3
#8 Klein Hans 3
#9 Meyer Egon 2
#10 Heinrich Zeppenfeld 1

Latest patents

Publication Filing date Title
DD128423A5 Microwave oven
ES455883A1 Door locking device for treating chamber exposed against high temperature of electric instruments
YU38077A Microwave stove
DE2705063A1 Rotary spit microwave oven with auxiliary heating - has spits supported between ceramic bearings and positively driven from rear
DE2651887A1 Microwave oven with pyrolytic cleaning system - has HF generator each side and has cables attached to door stops
DE2649308A1 Door construction for microwave oven - has slits with flaps spaced quarter wave apart and has reinforcing ribs
DE2621151A1 Locking device for self cleaning oven door - is operated by bimetal strip and thermostatically controlled blocking motor
DE2621149A1 Microwave oven for domestic use - has high temp. heater in side walls for pyrolytic self cleaning action
DE2608219A1 Microwave oven for domestic use - has high temp. heater in side walls for pyrolytic self cleaning action
DE2605699A1 Microwave oven for domestic use - has high temp. heater in side walls for pyrolytic self cleaning action
DE2605700A1 Locking device for self cleaning oven door - is operated by bimetal strip and thermostatically controlled blocking motor
DE2421216A1 Domestic popcorn machine with built-in butter spray - has thermostatic hot plate and transparent lid-cum-serving dish
DE2264805A1 Motorised transportable electric shoe cleaning machine - has removable chassis and dirt tray in outer casing
DE1809696A1 Producing the casing for a rear axle
GB1217030A Improvements in screwdrivers
US3586080A Screwdriver with handle
FR1444742A Axle housing for two-piece axle shafts for motor vehicles
FR1261667A Improvements made to stamped sheet metal stakes, more specifically for railway wagons
FR1046003A Improvements to needle cases