Inventor · Egham, GB

Taher Yousaf

18Patents
5h-index
23Co-inventors
62Inventor score

Filing activity: Jan 23, 1998 → Jul 17, 2008

Most-cited inventions

PatentTitleAreaCited byStatus
US5929012A Laundry pretreatment with peroxide bleaches containing chelators for iron, copper or manganese for reduced fabric damage Chemistry; Metallurgy 76 Expired
US6398822B1 Packaged hair coloring composition Emerging Cross-Sectional Technologies 11 Expired
US6447554B1 Reactive dye compounds Human Necessities 7 Expired
US6350862B1 Reactive dye compounds Emerging Cross-Sectional Technologies 6 Expired
US6518407B1 Reactive dye compound comprising at least one chromophore moiety and at least one nitrogen-containing heterocycle Textiles; Paper 5 Expired
US7279514B2 High-molecular-weight polymeric material comprising diketopyrrolopyrrole pigments Emerging Cross-Sectional Technologies 3 Expired
US6869453B1 Reactive dye compounds Emerging Cross-Sectional Technologies 3 Expired
US6736864B1 Reactive dye compounds Emerging Cross-Sectional Technologies 2 Expired
US6716969B1 Reactive dye compounds Chemistry; Metallurgy 2 Expired
US6713613B1 Reactive dye compounds Human Necessities 2 Expired
US7417154B2 Heat-stable diketopyrrolopyrrole pigment mixtures Chemistry; Metallurgy 1 Expired
US7786313B2 Heat-stable diketopyrrolopyrrole pigment mixtures Chemistry; Metallurgy 1 Active
US7041143B2 Method of coloring porous material Chemistry; Metallurgy 1 Expired
US7232467B2 Method of coloring porous material Chemistry; Metallurgy 1 Expired
US6723834B1 Reactive dye compounds Human Necessities 0 Expired
US7192453B2 Method of coloring keratin-containing fibres using diazonium salts Human Necessities 0 Expired
US6790943B1 Reactive dye compounds Human Necessities 0 Expired
US7582230B2 Liquid crystal display and colour filter with improved transparency for green light Physics 0 Expired

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