Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Process for the synthesis of vitamin A and certain ones of derivatives

Process for the synthesis of vitamin A and certain ones of derivatives

US Patent 5191110 · Granted Mar 2, 1993

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Composition for dyeing keratinous fibres with a cationic direct dye and a silico2009
Composition for dyeing keratin fibers with a cationic direct dye and a thickenin2007
Composition for the oxidation dyeing of keratinous fibers containing a laccase a2007
Composition for the oxidation dyeing of keratinous fibers containing a laccase a2006
Dye composition for keratin fibres, with a cationic direct dye and a substantive2005
Keratinous fibre oxidation dyeing composition containing a laccase and dyeing me2005
Oxidation dyeing composition for keratinous fibers and dyeing method using same2005
Oxidation dyeing composition for keratinous fibres containing a 3-aminopyridine 2004
Photoprotective/cosmetic compositions comprising dibenzoylmethane/triazine/diphe2004
Compositions for giving the skin a coloration similar to that of a natural tan, 2004
Deodorant composition comprising a water-soluble zinc salt as odor-absorbing age2003
Mixture for the oxidation tinting of keratin fibers containing a laccase and tin2003