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GRAEFF RODERICH WILHELM

Overview
  • Total Patents
    56
About

GRAEFF RODERICH WILHELM has a total of 56 patent applications. Its first patent ever was published in 1963. It filed its patents most often in Germany, United States and EPO (European Patent Office). Its main competitors in its focus markets chemical engineering, machines and thermal processes are WUXI QINGYANG MACHINERY MFG CO LTD, OPTIMAIR HOLDING B V and HUNAN WHITE FOREST ENVIRONMENTAL PROTECTION TECH CO LTD.

Patent filings per year

Chart showing GRAEFF RODERICH WILHELMs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Graeff Roderich W 19
#2 Graeff Roderich W Dr Ing 11
#3 Graeff Roderich Wilhelm Dr Ing 8
#4 Graff Roderich W 4
#5 Graeff Roderich Wilhelm Dr-Ing 3
#6 W Dr-Ing Graeff Roderich 3
#7 Graff Roderich Wilhelm Dr-Ing 3
#8 Graeff Roderich W Dr 2
#9 Becker Achim Helmut 2
#10 Reichl Karl Johann 1

Latest patents

Publication Filing date Title
US2013091723A1 Process and apparatus to control the airflow in dehumidifying dryers
DE102010049693A1 Method for controlling time-average rotational speed of e.g. fan-motor utilized for driving air-conveying blower to dry silica gel, involves switching-on and off electrical power for driving motor, so that motor is continuously rotated
DE102009049275A1 Method for drying plastic granules in drying hopper, involves passing hopper wall for its heating by preheated gas or drying air flow in region of granular filling
JP2005140497A Control method and device for gas flow rate passing through granular material in drying hopper
JP2004032982A Gravity temperature difference inducing method and device thereof
DE19712307A1 Method and device for adsorbing carried cargo
EP0805010A1 Process and apparatus for regenerating an adsorbent agent
DE19516311A1 Method and device for preparing an adsorbent containing an agent, in particular moisture
DE4437494A1 Method and device for drying moist gas
DE3929898A1 METHOD AND DEVICE FOR CONVEYING DRIED PLASTIC GRANULES
DE3926597A1 Appts. to adsorb moisture, etc. from gas stream - has reserve absorbent in external store to compensate for erosion and shrinkage of absorbent
DE3733793A1 METHOD AND DEVICE FOR CRYSTALLIZING AMORPHIC PLASTIC GRANULES
DE3405260A1 DEVICE FOR GENERATING A CONTINUOUS ELECTRICITY OF DRIED GASES FOR A DRYING FUNNEL
DE3234431A1 METHOD AND DEVICE FOR REMOVING GASES AND STEAMS FROM DRYING FUNNELS FILLED WITH BULK MATERIAL
US4509272A Method and apparatus for drying moist exhaust air from one or more bulk material drying hoppers
DE3131471A1 DEVICE FOR DRYING HUMIDIFIER EXHAUST FROM ONE OR SEVERAL DUMP DRYING CONTAINERS
DE2945892A1 Air drying appts. using absorption medium - with temp. equalisation chamber to remove heat from air released
DE2728836A1 Skylight or roof solar energy panel frame sealant - comprises monolithic flexible weatherproof unit, foldable for transport
DE2725839A1 METHOD AND DEVICE FOR DRYING POWDERED SHOE GOODS
DE2719409A1 Reinforced plastic panel for solar collectors - with parallel sheets sepd. by honeycomb spacers