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HELMUTH REICHHOLD

Overview
  • Total Patents
    12
About

HELMUTH REICHHOLD has a total of 12 patent applications. Its first patent ever was published in 1934. It filed its patents most often in United States. Its main competitors in its focus markets macromolecular chemistry and polymers and organic fine chemistry are PERPETUUM EBNER GMBH & CO KG, ISRAEL ROSENBLUM and KETONEX LTD.

Patent filings in countries

World map showing HELMUTH REICHHOLDs patent filings in countries
# Country Total Patents
#1 United States 12

Patent filings per year

Chart showing HELMUTH REICHHOLDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Herbert Honel 6
#2 Hovey Almon G 4
#3 Hodgins Theodore S 3
#4 Wilhelm Krumbhaar 1
#5 Alfred Pongratz 1
#6 Alois Zinke 1

Latest patents

Publication Filing date Title
US2157965A Process for producing phthalic anhydride
US2149678A Acid-amine condensation products
US2107610A Bleaching alkyd resins
US2153801A Acid-amine condensation product
US2109291A Urea-formaldehyde-polyhydric alcohol-polybasic acid condensation products
US2162172A Condensation products of the phenol-formaldehyde type
US2165380A Reaction products of a meta-substituted phenol and formaldehyde
US2110803A Resinous products and process of making same
US2112022A Condensation products and process of producing same
US2101944A Condensation product and process of producing same
US2139081A Process for improving resins and fatty oils
US2079210A Phenol-aldehyde condensation products