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ZELCZER ALEX

Overview
  • Total Patents
    11
About

ZELCZER ALEX has a total of 11 patent applications. Its first patent ever was published in 1983. It filed its patents most often in United States, Canada and EPO (European Patent Office). Its main competitors in its focus markets mechanical elements, control and machines are EMERSON PROCESS MANAGEMENT REGULATOR TECHNOLOGIES INC, ISOMATIC AS and MAROTTA VALVE CORP.

Patent filings in countries

World map showing ZELCZER ALEXs patent filings in countries
# Country Total Patents
#1 United States 6
#2 Canada 3
#3 EPO (European Patent Office) 1
#4 WIPO (World Intellectual Property Organization) 1

Patent filings per year

Chart showing ZELCZER ALEXs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Zelczer Alex 11
#2 Zelczer Ruth 5

Latest patents

Publication Filing date Title
CA2380771A1 Fluid flow control damper assembly
CA2166094C Fluid flow control damper assembly and method
US5170986A Flow control bladders for zone control apparatus
US4848654A Zone control and smoke damping apparatus for central heating and/or cooling systems
US4702412A Zone control apparatus for central heating and/or cooling systems
US4742956A Zone control apparatus for central heating and/or cooling systems
EP0221205A1 Zone control apparatus for central heating and/or cooling systems
US4600144A Zone control apparatus for central heating and/or cooling systems
CA1236694A Zone control apparatus for central heating and/or cooling systems
US4545524A Zone control apparatus for central heating and/or cooling systems