Inventor · Newcastle upon Tyne, GB

Frederick E. Hardy

29Patents
18h-index
46Co-inventors
81Inventor score

Filing activity: Aug 31, 1976 → Mar 20, 1997

Most-cited inventions

PatentTitleAreaCited byStatus
US4634551A Bleaching compounds and compositions comprising fatty peroxyacids salts thereof and precursors therefor having amide moieties in the fatty chain Chemistry; Metallurgy 154 Expired
US4681592A Peracid and bleach activator compounds and use thereof in cleaning compositions Mechanical Engineering; Lighting; Heating 117 Expired
US4536314A Bleach compositions comprising non-linear aliphatic peroxycarboxylic acid precursors Chemistry; Metallurgy 82 Expired
US4853143A Bleach activator compositions containing an antioxidant Chemistry; Metallurgy 60 Expired
US5431849A Bleaching detergent composition containing acylated sugar bleach activators Chemistry; Metallurgy 53 Expired
US5686015A Quaternary substituted bleach activators Chemistry; Metallurgy 48 Expired
US5616281A Acylated citrate esters as peracid precursors Chemistry; Metallurgy 43 Expired
US4619779A Detergent additive product Chemistry; Metallurgy 42 Expired
US5051212A Hard-surface cleaning compositions containing iminodiacetic acid derivatives Chemistry; Metallurgy 41 Expired
US5700771A Polyhydroxy fatty acid amide surfactants in percarbonate bleach-containing compositions Chemistry; Metallurgy 38 Expired
US5405542A Rinse-added fabric conditioning compositions containing fabric softening agents and cationic polyester soil release polymers and preferred cationic soil release polymers therefor Emerging Cross-Sectional Technologies 35 Expired
US4956447A Rinse-added fabric conditioning compositions containing fabric sofening agents and cationic polyester soil release polymers and preferred cationic soil release polymers therefor Chemistry; Metallurgy 34 Expired
US5496728A Encapsulation of liquids in micro-organisms Emerging Cross-Sectional Technologies 29 Expired
US5633225A Detergent compositions inhibiting dye transfer Chemistry; Metallurgy 26 Expired
US4840738A Stable biodegradable fabric softening compositions containing 2-hydroxypropyl monoester quaternized ammonium salts Chemistry; Metallurgy 25 Expired
US4294710A Detergent softener with amine ingredient Chemistry; Metallurgy 24 Expired
US4294711A Washing and softening compositions and methods for their manufacture Chemistry; Metallurgy 23 Expired
US4852989A Bleaching compounds and compositions comprising fatty peroxyacids salts thereof and precursors therefor having amide moieties in the fatty chain Chemistry; Metallurgy 18 Expired
US4238373A Process for making detergent compositions containing nitrogenous cationic surfactants Emerging Cross-Sectional Technologies 17 Expired
US4714565A Homogeneous concentrated liquid detergent compositions containing a monoester of a dicarboxylic acid Chemistry; Metallurgy 15 Expired
US4056113A Liquid detergent compositions for removal of cooked-on food soils Chemistry; Metallurgy 15 Expired
US4933096A Imidazole compounds and textile treatment compositions containing them Chemistry; Metallurgy 14 Expired
US4587054A Synthesis of hydrophilic phenol ester derivatives Chemistry; Metallurgy 12 Expired
US5759981A Process for treating textiles and compositions therefor Chemistry; Metallurgy 7 Expired
US4758378A Softening detergent compositions containing amide softening agent Chemistry; Metallurgy 4 Expired

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.