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BERNHARD KNUPFER DIPL ING

Overview
  • Total Patents
    13
About

BERNHARD KNUPFER DIPL ING has a total of 13 patent applications. Its first patent ever was published in 1927. It filed its patents most often in Germany. Its main competitors in its focus markets mechanical elements, audio-visual technology and machine tools are BONASIWEI VALVE CO LTD, ABB DISTRICT HEATING MANAGEMEN and ELECTROFAB & ENG.

Patent filings in countries

World map showing BERNHARD KNUPFER DIPL INGs patent filings in countries
# Country Total Patents
#1 Germany 13

Patent filings per year

Chart showing BERNHARD KNUPFER DIPL INGs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Knupfer Dipl-Ing Bernhard 1
#2 Rosenthal Dipl-Ing Siegfried 1

Latest patents

Publication Filing date Title
DE690754C razor
DE609125C Record holder
DE609128C stopcock
DE574694C Method for manufacturing an inclined seat valve
DE595054C Bend
DE571550C Inclined seat valve
DE588460C Friction drum
DE584027C Inclined seat valve
DE580427C Inclined seat valve
DE554451C Inclined seat valve
DE566342C Inclined seat valve
DE570250C Inclined seat valve with a circular passage cross-section in the seat
DE597797C Inclined seat valve