Stephen A. Madison
51Patents
16h-index
49Co-inventors
84Inventor score
Filing activity: Dec 16, 1986 → Feb 2, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5268003A | Stable amido peroxycarboxylic acids for bleaching | Chemistry; Metallurgy | 88 | Expired |
| US4751015A | Quaternary ammonium or phosphonium substituted peroxy carbonic acid precursors and their use in detergent bleach compositions | Chemistry; Metallurgy | 80 | Expired |
| US5360569A | Activation of bleach precursors with catalytic imine quaternary salts | Chemistry; Metallurgy | 63 | Expired |
| US4818426A | Quaternary ammonium or phosphonium substituted peroxy carbonic acid precursors and their use in detergent bleach compositions | Chemistry; Metallurgy | 58 | Expired |
| US5041232A | Sulfonimines as bleach catalysts | Chemistry; Metallurgy | 53 | Expired |
| US5360568A | Imine quaternary salts as bleach catalysts | Chemistry; Metallurgy | 50 | Expired |
| US5370826A | Quaternay oxaziridinium salts as bleaching compounds | Chemistry; Metallurgy | 50 | Expired |
| US5047163A | Activation of bleach precursors with sulfonimines | Chemistry; Metallurgy | 49 | Expired |
| US5045223A | N-sulfonyloxaziridines as bleaching compounds | Chemistry; Metallurgy | 46 | Expired |
| US5478357A | Activation of bleach precursors with imine quaternary salts | Chemistry; Metallurgy | 41 | Expired |
| US5106528A | Bleach activation and bleaching compositions | Chemistry; Metallurgy | 38 | Expired |
| US5482515A | Imine quaternary salts as bleach catalysts | Chemistry; Metallurgy | 37 | Expired |
| US5550256A | Imine quaternary salts as bleach catalysts | Chemistry; Metallurgy | 33 | Expired |
| US5442066A | Quaternary oxaziridinium salts as bleaching compounds | Chemistry; Metallurgy | 32 | Expired |
| US5281361A | Bleaching composition | Chemistry; Metallurgy | 18 | Expired |
| US5310925A | N-sulfonyloxaziridines as bleaching compounds | Chemistry; Metallurgy | 17 | Expired |
| US4822510A | Stably suspended 4,4'-sulfonylbisperoxybenzoic acid bleach in an aqueous liquid | Chemistry; Metallurgy | 15 | Expired |
| US5476671A | Synthetic ceramides and their use in cosmetic compostions | Human Necessities | 15 | Expired |
| US5466396A | Isethionate esters of alkyl alkoxy carboxylic acid | Chemistry; Metallurgy | 14 | Expired |
| US4788316A | Preparation of sulphonated aromatic esters | Chemistry; Metallurgy | 12 | Expired |
| US5653910A | Bleaching compositions containing imine, hydrogen peroxide and a transition metal catalyst | Chemistry; Metallurgy | 11 | Expired |
| US8247405B2 | Skin lightening compositions with acetylcholinesterase inhibitors | Human Necessities | 9 | Active |
| US5785886A | Bleaching compositions containing imine hydrogen peroxide and a transition metal catalyst | Chemistry; Metallurgy | 8 | Expired |
| US5232633A | Sulfoethyl carbonate wetting agents and their use in detergent compositions | Chemistry; Metallurgy | 8 | Expired |
| US5914305A | Peroxynitrite based bleaching systems | Chemistry; Metallurgy | 6 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.