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SCHAEFFER WALTER

Overview
  • Total Patents
    12
About

SCHAEFFER WALTER has a total of 12 patent applications. Its first patent ever was published in 1904. It filed its patents most often in United Kingdom, Austria and United States. Its main competitors in its focus markets electrical machinery and energy and mechanical elements are CHANGMIN TECHRON CO LTD, HEAT TRACE LTD and SAKAGUCHI DENNETSU KABUSHIKI K.

Patent filings in countries

World map showing SCHAEFFER WALTERs patent filings in countries
# Country Total Patents
#1 United Kingdom 5
#2 Austria 2
#3 United States 2
#4 Switzerland 1
#5 Germany 1
#6 Denmark 1

Patent filings per year

Chart showing SCHAEFFER WALTERs patent filings per year from 1900 to 2020

Focus technologies

Top inventors

# Name Total Patents
#1 Schaeffer Walter 12
#2 Heimann Arthur 2

Latest patents

Publication Filing date Title
DE4310383A1 Means for safeguarding against mix-up, which is intended for quick-action couplings for gases and liquids
GB191208140A Improvements in or relating to Electric Arc Lamps.
US1032027A Connection for running arc-lamps.
US1033275A Connection for running incandescent lamps and arc-lamps in common.
GB190828554A A Process for Manufacturing Flat Incandescent Filaments for Metallic Filament Electric Lamps.
GB190809479A An Improvement in Supporting Hooks for Electric Glow Lamp Filaments.
GB190726762A A Transforming Machine for Operating Arc-lamps and Incandescent Lamps-circuits of Low Voltage.
GB190426679A Improvements in or relating to Electric Circuit Protecting Devices.