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JAMES ROBERT HAPPER

Overview
  • Total Patents
    13
About

JAMES ROBERT HAPPER has a total of 13 patent applications. Its first patent ever was published in 1920. It filed its patents most often in United Kingdom. Its main competitors in its focus markets textiles and paper, mechanical elements and control are WATFORD ENGINEERING WORKS LTD, P J WOLFF & SOEHNE G M B H and SAMUEL MILNE.

Patent filings in countries

World map showing JAMES ROBERT HAPPERs patent filings in countries
# Country Total Patents
#1 United Kingdom 13

Patent filings per year

Chart showing JAMES ROBERT HAPPERs patent filings per year from 1900 to 2020

Latest patents

Publication Filing date Title
GB1081992A Safety device for machinery
GB623846A Garment press
GB448291A Improvements in or relating to vacuum boxes for paper-making machines
GB452311A Improvements relating to paper machines
GB416700A Improvements in the rolls of pulping-engines and like rolls for paper-making machinery
GB355635A Improvements relating to beating engines
GB318771A Improvements in the art of manufacturing paper
GB304863A Improvements relating to the art of making paper
GB299150A Improvements relating to the driving of beater and like rolls for paper-making machinery
GB208042A Improvements in or relating to beating and refining engines
GB201757A Improvements in or relating to beating or refining apparatus for paper mills
GB184210A Improved means for controlling the speeds of groups of machines and the like
GB175476A Improvements in boilers for use in paper making