Inventor · Runcorn, GB

David Holland

8Patents
3h-index
8Co-inventors
50Inventor score

Filing activity: Apr 26, 1976 → Apr 7, 1999

Most-cited inventions

PatentTitleAreaCited byStatus
US6485734B1 Topical composition for the treatment of head lice and nits and method Human Necessities 6 Expired
US4288387A Process for the preparation of cyclopropane carboxylic acid esters Chemistry; Metallurgy 4 Expired
US4310329A Aqueous compositions for darkening keratinous materials Human Necessities 3 Expired
US4332962A Preparation of cyclopropane carboxylic acid esters Chemistry; Metallurgy 1 Expired
US4228107A Polyhalogenated hydrocarbons, useful as insecticide intermediates, and methods for their preparation Chemistry; Metallurgy 1 Expired
US4350811A Chiral sugar complexes Chemistry; Metallurgy 1 Expired
US4056574A Oxidative coupling process Chemistry; Metallurgy 1 Expired
US4130598A 2,5-Dimethyl-2,4-hexadiene production Chemistry; Metallurgy 0 Expired

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