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RHEINISCHES METALLWERK GMBH

Overview
  • Total Patents
    183
About

RHEINISCHES METALLWERK GMBH has a total of 183 patent applications. Its first patent ever was published in 1937. It filed its patents most often in Germany, France and Switzerland. Its main competitors in its focus markets mechanical elements, civil engineering and materials and metallurgy are COLOMBO RENATO, WECO ARMATUREN GMBH and CHEN QIAOQIN.

Patent filings in countries

World map showing RHEINISCHES METALLWERK GMBHs patent filings in countries
# Country Total Patents
#1 Germany 71
#2 France 26
#3 Switzerland 25
#4 Austria 22
#5 Belgium 18
#6 United Kingdom 18
#7 Netherlands 2
#8 Spain 1

Patent filings per year

Chart showing RHEINISCHES METALLWERK GMBHs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Knott Theodor 56
#2 Theodor Knott 20
#3 Knott Theo 11
#4 Schoenwald Helmut 7
#5 Geilhausen Paul 3
#6 Wilhelm Spurzem 2
#7 Spurzem Wilhelm 2
#8 Erich Imhof 2
#9 Walter Prinz 2
#10 Imhof Erich 2

Latest patents

Publication Filing date Title
DE3501232A1 Broaching valve
DE3149052A1 Broaching valve
DE3047003A1 Connector for electrically insulated, tubular components - uses two tubular sections with holder(s) for rings on facing surface(s), with opposite extensions
DE3017210A1 Valve with oblique seat - has housing extension with internal elliptical cross=section, whose long axis is in or parallel to longitudinal valve plane
DE2911404A1 Flow medium controlled non-return valve - has insert body with supporting arms or ribs fitting detachably in housing
ATA192877A Shut-off valve with rotationalmmetric closer
DE2650644A1 Flap valve operated by in line shaft - has half circular ridges on seat periphery to seal valve edges
DE2503727A1 Valve with rotating plate and flexible seat - has plate with greater diameter than seat in double conical tube
DE2350783A1 Tap-off valve for pipe branch - having permanently installed auxiliary closure member
ES419333A3 Step key device. (Machine-translation by Google Translate, not legally binding)
DE2249905A1 VALVE WITH A DRAIN
DE2245311A1 CONNECTION OF PIPE-SHAPED, ELECTRICALLY INSULATED COMPONENTS AND / OR CABLE PARTS
DE2239906A1 TAP VALVE
DE2223903A1 PIPE CLAMP
DE2222290A1 SLEEVE CONNECTION FOR PIPES, FITTINGS OR THE LIKE
DE2206210A1 CONNECTION OF PIPE-SHAPED, ELECTRICALLY INSULATED COMPONENTS AND / OR CABLE PARTS
DE2110855A1 Valve spindle - with applied elastic lining
DE1962134A1 Device for preventing or reducing pressure surges in pipeline networks
DE1811160A1 Device for testing fittings
DE1775217A1 Device for preventing or reducing pressure surges in pipeline networks