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WALTHER BETHGE

Overview
  • Total Patents
    14
About

WALTHER BETHGE has a total of 14 patent applications. Its first patent ever was published in 1939. It filed its patents most often in Germany, United Kingdom and United States. Its main competitors in its focus markets electrical machinery and energy, transport and materials and metallurgy are LAMINAHEAT HOLDING LTD, FLEXWATT CORP and VER CHEMISCHE WERKE A G.

Patent filings in countries

World map showing WALTHER BETHGEs patent filings in countries
# Country Total Patents
#1 Germany 8
#2 United Kingdom 3
#3 United States 2
#4 Finland 1

Patent filings per year

Chart showing WALTHER BETHGEs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Bethge Walther 6
#2 Walther Bethge 2
#3 Arthur Egle 2
#4 Hermann Wende 1

Latest patents

Publication Filing date Title
US3635777A Apparatus for emplacing filament-shaped materials into thermoplastic materials, methods for using said apparatus and products produced thereby
GB831735A Improvements in or relating to electrical sheet-type heaters
DE1103480B Process for the production of a surface heater
GB846570A Method of producing a durable mechanical bond between glass and another material
DE1056337B Process for producing a permanent mechanical connection between glass and another substance and application of the process to the production of double glass panes
GB747839A Process for the manufacture of thin wire with a non-shining surface, and wire manufactured according to said process
US2813960A Electric surface heater
DE935986C Electric surface heater