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DAY SAN TONG

Overview
  • Total Patents
    19
About

DAY SAN TONG has a total of 19 patent applications. Its first patent ever was published in 1980. It filed its patents most often in Canada, EPO (European Patent Office) and Norway. Its main competitors in its focus markets consumer goods and civil engineering are SAITO KAZO, IZUMI TOSHIKO and FRIEDLAENDER ADOLF.

Patent filings in countries

World map showing DAY SAN TONGs patent filings in countries
# Country Total Patents
#1 Canada 4
#2 EPO (European Patent Office) 4
#3 Norway 3
#4 United States 3
#5 United Kingdom 2
#6 Singapore 2
#7 Ireland 1

Patent filings per year

Chart showing DAY SAN TONGs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Consumer goods
#2 Civil engineering

Focus technologies

# Technology
#1 Walking sticks
#2 Locks

Top inventors

# Name Total Patents
#1 Day San-Tong 16
#2 Wang David Tin-Yuia 1

Latest patents

Publication Filing date Title
SG62688G A fully automatic single push button type umbrella
CA1294849C Fully automatic single push button type umbrella
US4823821A Automatic single push button type umbrella
IE871223L Fully automatic single push button type umbrella
CA1218912A Full-automatic umbrella
CA1218911A Fully automatic single push button type umbrella
EP0151847A1 Fully-automatic umbrella
US4534374A Fully automatic single push button type umbrella
US4548222A Full-automatic umbrella
CA1153574A Mechanical digital lock
EP0054591A1 Mechanical digital lock