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ROBERTSON ANDREW ROBERT

Overview
  • Total Patents
    23
About

ROBERTSON ANDREW ROBERT has a total of 23 patent applications. Its first patent ever was published in 1901. It filed its patents most often in United Kingdom, United States and Austria. Its main competitors in its focus markets mechanical elements, machines and engines, pumps and turbines are LAIDLAW JOHN, AMERICAN TOOL AND MACHINE COMP and S S HEPWORTH COMPANY.

Patent filings in countries

World map showing ROBERTSON ANDREW ROBERTs patent filings in countries
# Country Total Patents
#1 United Kingdom 18
#2 United States 4
#3 Austria 1

Patent filings per year

Chart showing ROBERTSON ANDREW ROBERTs patent filings per year from 1900 to 2020

Focus technologies

# Technology
#1 Centrifuges
#2 Clutches and brakes
#3 Shafts
#4 Steam turbines

Top inventors

# Name Total Patents
#1 Robertson Andrew Robert 23

Latest patents

Publication Filing date Title
US1265816A Friction-clutch.
US1124807A Centrifugal machine.
GB191408306A Improvements in Centrifugal Machines.
GB191326303A Improvements in Centrifugal Machines.
GB191311927A Improvements in connection with Centrifugal Separators.
GB191217293A Improvements in Centrifugal Clutches.
GB191224833A Improvements in Centrifugal Clutches.
GB191211308A An Improved Friction Clutch.
GB191111583A An Improved Bearing for Shafts and the like.
GB191102925A Improvements in Continuous Centrifugal-separating Machines.
GB190927050A Improvements in Centrifugal Machines.
GB190927048A Improvements in Centrifugal Machines.
US978060A Bearing for centrifugal machines.
GB190907997A Improvements in connection with Suspended Centrifugal Machines.
GB190906053A Improvements in and relating to Impulse Turbines.
GB190825476A Improvements in Centrifugal Machines.
GB190825355A Improvements in Centrifugal Machines.
GB190824272A Improvements in connection with Centrifugal Machines.
GB190719736A Improvements in Machines for Grading or Classifying Pulverulent or Comminuted Materials.
GB190308114A Improvements in Centrifugal Machines.