Learn more

CRITTALL MFG CO LTD

Overview
  • Total Patents
    85
About

CRITTALL MFG CO LTD has a total of 85 patent applications. Its first patent ever was published in 1906. It filed its patents most often in United Kingdom, United States and Canada. Its main competitors in its focus markets civil engineering, surface technology and coating and machine tools are OEHMAN HANS, BIERLICH J H and DAESHIN ALUTECH CO LTD.

Patent filings in countries

World map showing CRITTALL MFG CO LTDs patent filings in countries
# Country Total Patents
#1 United Kingdom 67
#2 United States 6
#3 Canada 4
#4 Germany 4
#5 France 3
#6 Belgium 1

Patent filings per year

Chart showing CRITTALL MFG CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Amery Arthur Norton 4
#2 Ludgater Philip Godfrey 2
#3 Nicholls John Harold 2
#4 Crittall Walter Francis 2
#5 Edwards Jack William 2
#6 Francis Crittall Walter 2
#7 Walker Frederick Pickering 1
#8 Blair Wardropper Joseph 1
#9 Amos Edward John 1
#10 Amery Arthur N 1

Latest patents

Publication Filing date Title
GB950898A Glazed window or door frames and a method of producing such frames
GB907077A Improvements in or relating to metal frames for windows, doors í¡ í¡ke
GB901029A Metal frames for windows, doors and the like
DE1195031B Louvre window or blind, with two vertical rails on which the louvre flaps are pivotably mounted
GB864128A Improvements in windows and like frames
GB864127A Improvements in window like frames
GB854143A Friction hinges
GB833410A Improvements in louvres
GB866751A Handle locking device
GB846584A Safety fastening device for windows and the like
GB807469A A weather strip
GB830258A Galvanizing process
GB797901A Method of galvanising articles
GB731029A Means for fixing hollow metal frames to buildings
GB692662A Casement or like windows
GB689413A Improvements in friction hinges
GB679062A Garden frames
GB612566A Improvements in or relating to windows
GB608422A Improvements in or relating to friction hinges
GB607754A Improvements in or relating to windows