Inventor · Zwingenberg, DE

Uwe Lenz

6Patents
4h-index
10Co-inventors
54Inventor score

Filing activity: Mar 7, 1983 → Jan 23, 2019

Most-cited inventions

PatentTitleAreaCited byStatus
US5865853A Composition for dyeing keratin fibers containing vegetable dyes, a direct dye compound and oil and method of dyeing hair using same Human Necessities 7 Expired
US4464479A Method for treating red mud Chemistry; Metallurgy 7 Expired
US4659557A Process for producing ferrous sulphate in granule form Chemistry; Metallurgy 6 Expired
US6945254B2 Method for simultaneously dyeing and permanent shaping of hair Human Necessities 5 Expired
US7273058B2 Method for simultaneously dyeing and permanent shaping of hair Human Necessities 0 Expired
US12173163B2 Pigment mixture Chemistry; Metallurgy 0 Active

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