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LAIDLAW JOHN

Overview
  • Total Patents
    29
About

LAIDLAW JOHN has a total of 29 patent applications. Its first patent ever was published in 1894. It filed its patents most often in United Kingdom, United States and Canada. Its main competitors in its focus markets machines and mechanical elements are ROBERTSON ANDREW ROBERT, AMERICAN TOOL AND MACHINE COMP and S S HEPWORTH COMPANY.

Patent filings in countries

World map showing LAIDLAW JOHNs patent filings in countries
# Country Total Patents
#1 United Kingdom 23
#2 United States 5
#3 Canada 1

Patent filings per year

Chart showing LAIDLAW JOHNs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Machines
#2 Mechanical elements

Focus technologies

# Technology
#1 Centrifuges
#2 Clutches and brakes
#3 Shafts

Top inventors

# Name Total Patents
#1 Laidlaw John 29
#2 Macfarlane James Wright 14
#3 Matthey Charles Alphonso 2
#4 Macfarlane James W 1

Latest patents

Publication Filing date Title
US832984A Friction-clutch.
US840223A Clutch or brake mechanism.
GB190506819A Improvements in Friction Clutches.
US719476A Centrifugal machine.
GB190205750A Improvements in Centrifugal Machines
GB190019003A Improvements in Centrifugal Drying Machines.
US685686A Bearing for centrifugal machines.
GB189922994A Improvements in Centrifugal Machines.
GB189920202A Improvements in Centrifugal Machines.
GB189917544A Improvements in Weston Centrifugal Machines.
GB189710952A Improved Means of Regulating the Supply of Water or other Fluid under Pressure to Centrifugal Machines.
GB189708712A Improvements in Rotary Washing Machines.
GB189708247A Improvements in Centrifugal Machines.
GB189701188A Improvements in Centrifugal Machines.
GB189630093A Improved Method of Driving Washing Machines.
US646182A Centrifugal creamer.
GB189603345A Improvements in Centrifugal Machines for Separating Fluids of Different Densities.
GB189601950A Improvements in Centrifugal Machines.
GB189600921A A New Adhesive Mourning Label for Letter-paper, Envelopes, Postal Cards, Visiting Cards, Circulars, and the like.
GB189521694A Improvements in Centrifugal Machines.