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DOWALDWERKE

Overview
  • Total Patents
    82
About

DOWALDWERKE has a total of 82 patent applications. Its first patent ever was published in 1937. It filed its patents most often in Germany, France and Austria. Its main competitors in its focus markets civil engineering, transport and mechanical elements are BODE GMBH & CO KG GEBR, IFE GMBH and APPRICH SECUR 2000 GMBH.

Patent filings in countries

World map showing DOWALDWERKEs patent filings in countries

Patent filings per year

Chart showing DOWALDWERKEs patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Steinkamp Julius 17
#2 Graue Werner 11
#3 Julius Steinkamp 5
#4 Woehler Manfred 5
#5 Wind Max 4
#6 Werner Graue 3
#7 Otten Rolf 3
#8 Franz-Wilhelm Rediker 3
#9 Manfred Grebel 3
#10 Rediker Franz-Wilhelm 2

Latest patents

Publication Filing date Title
EP0573960A1 Electromagnetic door locking device
EP0479003A2 Closing device for doors
DE3708498A1 Control for an extendable step for a railway carriage
EP0175194A2 Closing device for a horizontally guided door panel
DE3317665A1 Actuating device of at least one trigger switch for the door drive, in particular of rail-bound passenger cars
DE3313310A1 Arrangement for opening especially pneumatically driven doors of rail-borne passenger vehicles
DE3027680A1 Rail passenger car pneumatic doors control system - has additional release switch activated only in one operative control position
EP0005718A1 Closing device for sliding door wings
DE2406942A1 Rotating and folding door for ferry boat cabins - has two unequal connected hinged panels and linear guide
DE2337940A1 Door end position control - has latch held at stop by spring and stop moved against by spring by lever using electromagnet
DE2238351A1 HYDRAULIC OR PNEUMATIC ACTUATING DEVICE FOR FOLDING DOORS, IN PARTICULAR IN TRANSPORT VEHICLES
DE2237705A1 ELECTROPNEUMATIC TIMER VALVE
DE2231094A1 DEVICE FOR BRAKING AND HOLDING PARTS MOVING IN GUIDES, IN PARTICULAR VEHICLE FOLDING DOORS IN THEIR END POSITIONS
DE2221575A1 RAILWAY CARRIAGE FOR PERSONNEL WITH STEPS
DE2158724A1 ARRANGEMENT ON A VEHICLE ENTRY AND / OR EXIT, IN PARTICULAR BY MEANS OF A SWIVEL SLIDING DOOR
DE2133756A1 SLIDING DOORS, ESPECIALLY FOR VEHICLES
DE2038911A1 Device for braking and holding parts moving in guides, in particular vehicle rotating folding doors, in their end positions
DE1930485A1 Swivel sliding door, especially for road and rail vehicles
DE1935375A1 Locking device for pivoting sliding doors, especially of road and rail vehicles
DE1920361A1 Roller hangers for swing-out sliding doors, especially on rail vehicles