ERHARD GMBH & CO has a total of 16 patent applications. Its first patent ever was published in 1995. It filed its patents most often in Germany, EPO (European Patent Office) and Norway. Its main competitors in its focus markets mechanical elements and civil engineering are Shanghai pudong hanwei valve co ltd, HENAN YUDA VALVE MFG CO LTD and ZHU XINGSHENG.
# | Country | Total Patents | |
---|---|---|---|
#1 | Germany | 8 | |
#2 | EPO (European Patent Office) | 3 | |
#3 | Norway | 2 | |
#4 | Poland | 2 | |
#5 | Hungary | 1 |
# | Industry | |
---|---|---|
#1 | Mechanical elements | |
#2 | Civil engineering |
# | Technology | |
---|---|---|
#1 | Venting or aerating devices | |
#2 | Gearing | |
#3 | Pistons and sealings | |
#4 | Doors and windows | |
#5 | Pipes |
# | Name | Total Patents |
---|---|---|
#1 | Brien Joachim | 3 |
#2 | Kauschinger Martin | 3 |
#3 | Nothelfer Markus | 3 |
#4 | Foerster Siegmar | 3 |
#5 | Bosch Eduard | 2 |
#6 | Greiner Ralf | 1 |
#7 | Heyl Karl-Heinz Dipl-Ing | 1 |
#8 | Heyl Karl-Heinz Dipl Ing | 1 |
#9 | Funcke Erhard Ing | 1 |
#10 | Foerster Siegmar Dipl-Ing | 1 |
Publication | Filing date | Title |
---|---|---|
PL345307A1 | Nozzle-type check valve | |
EP1221565A1 | Nozzle check valve | |
DE19958045A1 | Water pipe union with flow-regulation flap has adapters for wide range of different pipes, lowering manufacturing costs and stock holding requirements | |
DE19918176A1 | Fastening device on houseless fittings | |
DE19918177A1 | Sliding plate for housing-less fittings | |
DE19906350A1 | Stop nut for limiting effective range of screw and spindle gears | |
DE19815415A1 | Sealing arrangement with adapted frame profile | |
DE19716915A1 | Spindle gear | |
DE19527656A1 | Butterfly valve | |
DE19506753A1 | Sealing system for knife gate valves |