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WETZEL ALFRED

Overview
  • Total Patents
    28
About

WETZEL ALFRED has a total of 28 patent applications. Its first patent ever was published in 1900. It filed its patents most often in Germany, Switzerland and Austria. Its main competitors in its focus markets civil engineering, environmental technology and thermal processes are MITJAVILA RAYMOND, ZAHNER ROMAN and PRATIC F LLI ORIOLI S P A.

Patent filings in countries

World map showing WETZEL ALFREDs patent filings in countries

Patent filings per year

Chart showing WETZEL ALFREDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Wetzel Alfred Dipl Ing 11
#2 Wetzel Alfred 5
#3 Wetzel Alfred Dipl-Ing 3
#4 Alfred Wetzel 1

Latest patents

Publication Filing date Title
DE3802583A1 Ventilating apparatus for windows and/or French windows for the recuperative ventilating and venting of lounges (recreation rooms)
EP0164111A2 Sound absorbing and heat insulating compound window with a ventilating device
DE3300389A1 Equipment for measuring air conditioning values, in particular in living rooms, bedrooms and work rooms
DE3216581A1 SOUND AND HEAT-INSULATING CONNECTING WINDOW WITH SOUND INSULATION
DE3043783A1 Double glazed, insulated, composite window - has serpentine ducts in top and bottom ventilation units with variable air link
DE2949221A1 Solar heating system under wall cladding - uses resilient liq. circulating tubes attached to flexible strips, between upper and lower header tubes
DE2847498A1 Noise screen for motorways, railway lines etc. - consists of stacked troughs of pyramidal configuration supported at their centres
DE2757604A1 Self-tightening elastic wall cladding panel - comprises two part areas with bending form pieces, one projecting upwards
ATA659077A Wall covering panel made of elastic bendable material
NL176291B Wall covering plate.
GB190003037A Improvements in Valve Gear for Direct Acting Steam Engines and the like.
US648820A Valve-gear for engines.