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DAVID AUGUSTINE HARPER

Overview
  • Total Patents
    11
About

DAVID AUGUSTINE HARPER has a total of 11 patent applications. Its first patent ever was published in 1941. It filed its patents most often in United Kingdom. Its main competitors in its focus markets macromolecular chemistry and polymers are INTERCHEM INT SA, BRIDGES CORP and SHAN CHENGMIN.

Patent filings in countries

World map showing DAVID AUGUSTINE HARPERs patent filings in countries
# Country Total Patents
#1 United Kingdom 11

Patent filings per year

Chart showing DAVID AUGUSTINE HARPERs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Macromolecular chemistry and polymers

Latest patents

Publication Filing date Title
GB599905A Curing polymeric materials
GB614993A Treatment of polymeric materials
GB614994A Improvements in the curing of polymeric materials
GB585205A Curing of polymeric materials
GB581410A Curing of polymeric materials
GB581439A Curing of polymeric materials
GB580526A Improvements in the curing of polymeric materials
GB581134A Means for adhesively uniting articles
GB574739A Treatment of linear polymers with formaldehyde or formaldehyde-liberating substance
GB597326A Treatment of polymeric materials
GB572738A Improvements in polymeric materials