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HOFFMANN MFG CO LTD

Overview
  • Total Patents
    103
About

HOFFMANN MFG CO LTD has a total of 103 patent applications. Its first patent ever was published in 1898. It filed its patents most often in United Kingdom, France and United States. Its main competitors in its focus markets mechanical elements, machine tools and transport are AUTO MACHINERY COMPANY LTD, TSUBAKIMOTO PRECISION PROD and SUDA MINORU.

Patent filings in countries

World map showing HOFFMANN MFG CO LTDs patent filings in countries
# Country Total Patents
#1 United Kingdom 70
#2 France 17
#3 United States 11
#4 Canada 2
#5 Germany 2
#6 Sweden 1

Patent filings per year

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

Top inventors

# Name Total Patents
#1 Schmidt Otto Alwin 7
#2 Weeks George 3
#3 Dale Roger Malcolm 2
#4 Thobroe Eivind Christian 2
#5 Keyse David Sidney 2
#6 Smith Charles Henry 1
#7 Nisbet Thomas Stewart 1
#8 Clarke R 1
#9 Clarke Ronald Arthur 1
#10 Thobroe Eivind C 1

Latest patents

Publication Filing date Title
GB1215466A Means for supporting and retaining rolling elements
GB1173903A Cleaning a Continuous Flow of Small Articles and apparatus therefor
GB676689A An axle box
GB578112A Improvements in or relating to axle boxes
GB577965A A cage for roller bearings
GB580286A A cage for ball bearings
GB575716A Improvements in cages for roller bearings
GB574297A Improvements in or relating to axle bearings for electrically driven rail vehicles
GB572254A Improvements in the manufacture of cages for roller bearings
GB553692A Improvements in or relating to bearing mountings
GB558375A Improvements in seals for antifriction bearings
GB545934A Improvements in bearing seals
GB532653A Improvements in or relating to ball and/or roller bearings
GB528648A Improvements in or relating to ball and roller bearings
GB507312A A process and apparatus for the manufacture by rolling of annular articles, especially ball-bearing race rings and the like
GB488166A Cages for ball bearings
GB467728A Improvements in or relating to roller bearings
GB470059A Improvements in or relating to bearings for variable-pitch propellers
GB444102A Improvements in or relating to anti-friction bearings
GB444292A Improvements in and relating to roller thrust-bearings