Learn more

PREC GRINDING LTD

Overview
  • Total Patents
    33
About

PREC GRINDING LTD has a total of 33 patent applications. Its first patent ever was published in 1940. It filed its patents most often in United Kingdom, United States and Germany. Its main competitors in its focus markets machine tools, consumer goods and measurement are ALLEMANN ETS, KARMAZ PETR A and SHENZHEN CREATE CENTURY MACHINERY CO LTD.

Patent filings in countries

World map showing PREC GRINDING LTDs patent filings in countries
# Country Total Patents
#1 United Kingdom 17
#2 United States 10
#3 Germany 3
#4 France 2
#5 Canada 1

Patent filings per year

Chart showing PREC GRINDING LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Dwyer James Henry 5
#2 Franz Plaut Hermann 4
#3 Henry Dwyer James 3
#4 Primrose Barrott George 3
#5 Plaut Hermann Franz 3
#6 Holmes Ronald Frank 3
#7 Andrews Stanley William Charle 2
#8 Charles Andrews Stanley Willia 2
#9 Ernest Stainton Dudley 1
#10 True Charles William 1

Latest patents

Publication Filing date Title
GB1261627A Attachment for use on a contour copying machine
GB1255487A Attachment for use with surface grinding, milling or like machines
GB1069481A Pattern-controlled machine tools
US3330293A Pattern-controlled machine tools
GB1020024A Pneumatic or hydraulic valves
GB866886A Improvements relating to cutting tools
GB870955A Improvements relating to pantographic engraving machines
US2957471A Means for trimming grinding or analogous rotary bodies used in grinding or other machines
GB844143A Means for trimming grinding or analogous rotary bodies used in grinding or other machines
US2911182A Pattern-controlled machine tools
DE1203575B Hydraulic control for post-forming machine tools, especially milling machines
GB783444A Pattern-controlled machine tools
GB756978A Improvements in and relating to devices for effecting controlled variations of geometrical forms and other shapes
US2766529A Pantograph
GB723220A Improvements in and relating to pantographs
DE898870C Copier for the controlled change of geometric shapes u. like
US2714254A Device for effecting controlled variations of geometrical forms and other shapes
GB701635A Improvements in and relating to devices for effecting controlled variations of geometrical forms and other shapes
US2608113A Location and boring of position holes
GB599708A Improvements in optical magnifying apparatus