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HENRY WILLIAMS LTD

Overview
  • Total Patents
    32
About

HENRY WILLIAMS LTD has a total of 32 patent applications. Its first patent ever was published in 1915. It filed its patents most often in United Kingdom, Spain and Canada. Its main competitors in its focus markets civil engineering, transport and electrical machinery and energy are DT VYHYBKARNA A STROJIRNA A S, ABC RAIL PRODUCTS CORP and VAE NORTRAK NORTH AMERICA INC.

Patent filings in countries

World map showing HENRY WILLIAMS LTDs patent filings in countries
# Country Total Patents
#1 United Kingdom 26
#2 Spain 4
#3 Canada 1
#4 France 1

Patent filings per year

Chart showing HENRY WILLIAMS LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Williams Owen M 1

Latest patents

Publication Filing date Title
GB905913A Improvements in and relating to means for operating and locking facing points
GB744802A Improvements in fishplates for permanent way rails
GB718296A Improvements in hand-worked railway switch operating mechanism
GB679050A Improvements in and relating to insulated fish plates
GB666452A An improved spring clip for securing flat bottom rails to bearing plates, steel sleepers and the like
GB648554A Improvements in and relating to tips for plough shares
GB634064A Improvements in and relating to fishplates
GB636149A Improvements in and relating to dog spikes
GB633200A Improvements in and relating to the stretcher bars of railway switches
GB631060A Improvements in and relating to distance blocks for railway permanent way
GB605792A Improvements in and relating to dog spikes
GB529943A An improved device for use in effecting the removal of elastic spikes used in retaining permanent way rails in position
GB528527A Improvements in and relating to economical facing point locks
GB498016A Improvements in and relating to means for securing permanent way rails to their sleepers
GB490872A Improvements in and relating to facing point locks
GB467418A Improvements in interlocking devices for switches and cross-over switches
ES139173A1 Improvements in boiler homes and what is related to them.
ES139172A1 Improvements in the means to evacuate ash from boiler homes, or in relation to these means.
GB446855A Improvements in and relating to slide chairs for railway switch points
GB435942A Improvements in and relating to stretcher bars for railway switches