Inventor

PORTER FREDERIC E

US4 patents

⚠️ This page may combine multiple inventors who share the name “PORTER FREDERIC E”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SANDOZ LTD

2 patents

US4251952AFeb 24, 1981

Plant seed coating

SANDOZ LTD79 citations94

US4394845AJul 26, 1983

Seed coating apparatus

SANDOZ LTD9 citations71

SANDOZ AG

1 patent

US4238523ADec 9, 1980

Seed coating process

SANDOZ AG27 citations80

NORTHRUP KING & COMPANY

1 patent

US3936976AFeb 10, 1976

Anti-erosion coating of seeds

NORTHRUP KING & COMPANY27 citations71