Learn more

W H KEYLESS LOCK COMPANY LTD

Overview
  • Total Patents
    23
About

W H KEYLESS LOCK COMPANY LTD has a total of 23 patent applications. Its first patent ever was published in 1924. It filed its patents most often in United States, France and United Kingdom. Its main competitors in its focus markets civil engineering and machines are AUSTRALIAN LOCK CO PTY LTD, RUKO AS and LING CHONG KUAN.

Patent filings in countries

World map showing W H KEYLESS LOCK COMPANY LTDs patent filings in countries
# Country Total Patents
#1 United States 11
#2 France 6
#3 United Kingdom 6

Patent filings per year

Chart showing W H KEYLESS LOCK COMPANY LTDs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Civil engineering
#2 Machines

Focus technologies

# Technology
#1 Locks
#2 Unspecified technologies

Top inventors

# Name Total Patents
#1 Gilchrist Hatch Alexander 7
#2 Meade Wildrick 6

Latest patents

Publication Filing date Title
GB249023A Improvements in or relating to locks
GB241850A Improvements in or relating to locks
GB255258A Improvements in or relating to locks
GB255260A Improvements in or relating to locks
GB249024A Improvements in or relating to locks
GB255259A Improvements in or relating to locks
US1583688A Keyless lock
US1583687A Keyless lock
US1583635A Keyless lock
US1586496A Keyless lock
US1579046A Keyless lock and permutation wheel for the same
US1600157A Permutation wheel for keyless locks
US1577398A Keyless lock
US1565132A Keyless lock
US1583686A Permutation wheel for keyless locks
US1555970A Casing for keyless locks
US1555969A Keyless lock