Inventor · Corwen, GB

John Townend

6Patents
3h-index
7Co-inventors
50Inventor score

Filing activity: Mar 31, 1976 → Apr 3, 1997

Most-cited inventions

PatentTitleAreaCited byStatus
US4987907A Chewing tobacco composition and process for producing same Human Necessities 213 Expired
US4917161A Chewing tobacco composition and process for producing the same Human Necessities 95 Expired
US5433881A Granulation process for making granular bleach activator compositions and resulting product Chemistry; Metallurgy 33 Expired
US4083857A Process Chemistry; Metallurgy 2 Expired
US5985815A Bleach activators Chemistry; Metallurgy 1 Expired
US4182916A Method for the production of 6-hydroxy-1,2,3,4-tetrahydronaphthalene Chemistry; Metallurgy 1 Expired

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