Inventor · Witham, GB

Christopher J. Pearson

9Patents
7h-index
11Co-inventors
56Inventor score

Filing activity: Jul 14, 1989 → Jul 16, 1999

Most-cited inventions

PatentTitleAreaCited byStatus
US5232940A Derivatives of N-phenylpyrazoles Chemistry; Metallurgy 192 Expired
US5547974A Derivatives of N-phenylpyrazoles Chemistry; Metallurgy 36 Expired
US5608077A Derivatives of n-phenylpyrazoles Chemistry; Metallurgy 24 Expired
US5714191A Derivatives of N-phenylpyrazoles Chemistry; Metallurgy 23 Expired
US5916618A Derivatives of N-phenylpyrazoles Chemistry; Metallurgy 21 Expired
US4963575A Derivatives of N-phenylpyrazoles, compositions and use Chemistry; Metallurgy 20 Expired
US5489570A Herbicidal isoxazoles Chemistry; Metallurgy 13 Expired
US6372774B1 Derivatives of N-phenylpyrazoles Chemistry; Metallurgy 7 Expired
US5123953A Dihalogenated herbicidal sulphones Chemistry; Metallurgy 0 Expired

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