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AMMANN ERNST

Overview
  • Total Patents
    17
About

AMMANN ERNST has a total of 17 patent applications. Its first patent ever was published in 1909. It filed its patents most often in Switzerland, United States and Austria. Its main competitors in its focus markets machines, macromolecular chemistry and polymers and civil engineering are ANHUI BEIMA SCIENCE & TECH CO LTD, HENGDIAN GROUP DEBANG ENG PLASTIC CO LTD and GUANGDONG SUNWILL SAITECH ENG PLASTICS DEVELOPMENT CO LTD.

Patent filings in countries

World map showing AMMANN ERNSTs patent filings in countries
# Country Total Patents
#1 Switzerland 6
#2 United States 5
#3 Austria 2
#4 EPO (European Patent Office) 2
#5 Canada 1
#6 France 1

Patent filings per year

Chart showing AMMANN ERNSTs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Ammann Ernst 14
#2 Knerr Michael 3
#3 Ernst Ammann 3
#4 Hersche Emil 3
#5 Haldemann Peter 3

Latest patents

Publication Filing date Title
EP0959220A1 Shutter with insect screen
EP0816613A1 Hinge for a shutter
CH690968A5 Window shutter or blind has pivotable sun lamellas, each of which forms air inlet slot with adjacent lamella. On each sun lamella at least one insect protection lamella is arranged
US4635426A Device for bridging the joint between two parts of a roof and method for testing its tightness
CA1179472A Device for bridging the joint between two parts of roof and method for testing its tightness
US4071994A Expansion joint for roofs and the like