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HEIN LEHMANN AG

Overview
  • Total Patents
    349
About

HEIN LEHMANN AG has a total of 349 patent applications. Its first patent ever was published in 1949. It filed its patents most often in Germany, United Kingdom and United States. Its main competitors in its focus markets chemical engineering, machines and machine tools are HEIN LEHMANN TRENN FOERDER, RUMPF HANS PROF DR ING and CHENGDU WEST PETROLEUM EQUIPMENT CO LTD.

Patent filings per year

Chart showing HEIN LEHMANN AGs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Hoppe Kurt 39
#2 Schmidt Gerhard 31
#3 Lehmann Wolfgang 22
#4 Neukam Christian 20
#5 Schmidt Heinrich 13
#6 Lummerich Hans 11
#7 Schmidt Heinrich Dipl Ing 11
#8 Schmidt Dipl-Ing Heinrich 10
#9 Trojan Guenter 10
#10 Trojan G 7

Latest patents

Publication Filing date Title
DE3823896A1 SCREENING MACHINE
DE3823192A1 CANOPY FILTER
DE3811641A1 Screen mat consisting of fabric
DE3800812A1 Screen lining of a screening machine
DE3621902A1 Screening machine
WO8606659A1 Method and device for screening particulate materials
EP0236530A1 Screen bottom
DE3606854A1 Screen lining with two screen plates arranged one above the other
DE3526767A1 SEALING FOR A SCREENING MACHINE
DE3524895C1 Screening machine
DE3521753A1 SCREENING MACHINE WITH A SCREEN COVER FIXED TO CROSS-ELEMENTS
DE3520420A1 Method for constructing a bridge vault
DE3515891A1 SCREEN DEVICE
DE3515937A1 SCREENING FOR A SCREENING MACHINE
DE3512490A1 METHOD FOR PRODUCING PLASTIC SCREEN ELEMENTS
DE3434296A1 Device for supporting a bridge during displacement
DE3425485A1 SCREENING
DE3412174A1 DRUM SCREENING MACHINE
DE3405752A1 CONTINUOUSLY WORKING CENTERS
DE3326481C1 Screening machine