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GRAEF WALTER

Overview
  • Total Patents
    11
About

GRAEF WALTER has a total of 11 patent applications. Its first patent ever was published in 1970. It filed its patents most often in Germany. Its main competitors in its focus markets environmental technology, chemical engineering and machines are ROWE J K, SOLAR SOLUTIONS LLC and DJELOUAH MYRIAM.

Patent filings in countries

World map showing GRAEF WALTERs patent filings in countries
# Country Total Patents
#1 Germany 11

Patent filings per year

Chart showing GRAEF WALTERs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Graef Walter 10

Latest patents

Publication Filing date Title
DE19918256A1 Continuously operating rotary piston, operating in two chambers, functioning beyond circuit
DE19647358A1 Deep sea water reverse osmosis desalination plant has outer membrane
DE4328872A1 Pump having two chambers for conveying (delivering) hydraulic and pneumatic media, which can be operated in axial and radial directions
DE4321192A1 Apparatus for distilling water in the low-temperature range
DE3909500A1 Foil solar collector, in particular a holder
DE3736282A1 Solar sea water desalination
DE3633170A1 Universal solar collector operating as condenser
DE3612188A1 Solar sea-water desalination plant
DE2324110A1 Operating ejectors together in plastic moulds - using central system to energise all ejectors
DE2231011A1 Mould injection nozzle - with teeth placed between nozzle bodies and mould wall
DE2019285A1 Plastics mould inlet nozzle - expanded into hole in mould wall