Inventor · Concord, CA, US

Helen K. Tobol

4Patents
3h-index
4Co-inventors
43Inventor score

Filing activity: Nov 7, 1974 → Sep 10, 1986

Most-cited inventions

PatentTitleAreaCited byStatus
US4670045A Fungicidal control employing ester derivatives of 4,6-disubstituted 2-pyridinols Chemistry; Metallurgy 14 Expired
US4143144A Ethers of 4-halomethylpyridines Chemistry; Metallurgy 10 Expired
US4717726A 3,5-dichloro-2,4-dimethoxy-6-(trichloromethyl)pyridine having anti-tumor activity Human Necessities 9 Expired
US3937831A Chloromethyl nitropyridines as antimicrobials Chemistry; Metallurgy 2 Expired

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