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STEWARTS & LLOYDS LTD

Overview
  • Total Patents
    393
About

STEWARTS & LLOYDS LTD has a total of 393 patent applications. Its first patent ever was published in 1903. It filed its patents most often in United Kingdom, France and Germany. Its main competitors in its focus markets measurement, mechanical elements and materials and metallurgy are COCKERILL OUGREE, MANNESMANN ROEHREN WERKE AG and AIR CELL INNOVATIONS PTY LTD.

Patent filings in countries

World map showing STEWARTS & LLOYDS LTDs patent filings in countries

Patent filings per year

Chart showing STEWARTS & LLOYDS LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Whitaker Paul 20
#2 Clift Alfred 19
#3 Mclay Gavin Smellie 14
#4 Hetherington Matthew James 11
#5 Belford Adam Jerrold Rhind 9
#6 Riddle Graham William 7
#7 Hetherington M 6
#8 Hendry David Calder 6
#9 Smellie Mclay Gavin 5
#10 Lewis Richard 5

Latest patents

Publication Filing date Title
ZA8207666B A butterfly valve
US3684149A Expansible tools
FR2012280A1 Detector for length and speed of bars - leaving rolling mill
US3628032A Apparatus for detecting objects
US3616978A Conveyors
GB1280473A Apparatus for detecting objects
US3528164A Method of assembling tubular structures
ES348940A1 A method of mounting a knot between the extremes of various steel tubular members. (Machine-translation by Google Translate, not legally binding)
GB1165431A Spigot-and-Socket Pipe Joints
GB1216676A Pipe joints having protective coverings
GB1170139A Workpiece Feed Mechanism.
GB1243001A Conveyors
US3466920A Expanding tool for use with a tubular workpiece
GB1166345A Improvements in or relating to the Manufacture of Moulds.
GB1206400A Improvements relating to tubular structures
GB1206399A Improvements relating to tubular structures
GB1201261A Improvements in and relating to ultrasonic jet probes
GB1199414A Improvements in and relating to Rotary Ultrasonic Testing Apparatus.
GB1197562A Improvements in or relating to the Reinforcement of Plastics Sheets or Pipes
GB1202352A Improvements relating to joints for tubular structures