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HEATH FREDERICK

Overview
  • Total Patents
    20
About

HEATH FREDERICK has a total of 20 patent applications. Its first patent ever was published in 1913. It filed its patents most often in Canada, United States and Spain. Its main competitors in its focus markets civil engineering are TATSUMI KK, HERREZUELO DE LA SIERRA EDUARDO and GUIRAUDIE & AUFFEVE ETS.

Patent filings in countries

World map showing HEATH FREDERICKs patent filings in countries
# Country Total Patents
#1 Canada 13
#2 United States 3
#3 Spain 2
#4 Switzerland 1
#5 United Kingdom 1

Patent filings per year

Chart showing HEATH FREDERICKs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Civil engineering

Focus technologies

Top inventors

# Name Total Patents
#1 Heath Frederick 18
#2 Heath Frederick T 1

Latest patents

Publication Filing date Title
GB121287A Improvements in Hollow Wall Construction.
CA187208A Tile
CA187602A Lintel
CA177544A Wall
US1294905A Hollow corner-block.
US1244328A Lintel.
US1215149A Hollow-wall construction.
CA241791A Pressure controlled valve
CA229810A Fireproof hollow wall
CA226971A Silo
CA243942A Pressure controlled valve
CA228183A Hollow wall
CA229640A Pilaster construction
CA228184A Hollow tile wall
CA228936A Hollow wall and building block
CA244714A Steam boiler plant
CA240364A Valve