Public domain
Plant breeders' rights are granted for a limited term. Upon expiration, the variety enters the public domain: its seeds can be propagated and sold without the rights holder's license.
Recent years are the most sought-after: the variety is free to use but still in production.
Zea mays L. subsp. mays (Maize Group) · Maize
Pioneer Hi-Bred International Inc (US)
Zea mays L. subsp. mays (Maize Group) · Maize
Pioneer Hi-Bred International Inc (US)
Zea mays L. subsp. mays (Maize Group) · Maize
Pioneer Hi-Bred International Inc (US)
Zea mays L. subsp. mays (Maize Group) · Maize
Pioneer Hi-Bred International Inc (US)
Zea mays L. subsp. mays (Maize Group) · Maize
Pioneer Hi-Bred International Inc (US)
Rosa L. · Rose
Poulsen Roser Aps (DK)
Zea mays L. · Maize
Intraseed
Lolium perenne L. · Perennial ryegrass
CEBECO ZADEN B.V.
Gossypium hirsutum L. · Upland cotton
MED GENETICS
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
Hybrids Ellas Abee
Pisum sativum L. · Pea
KWS Momont Recherche Sarl
Brassica oleracea L. (White Cabbage Group) · White cabbage
Golden West Seed Co.
Phaseolus vulgaris L. · Common bean
Golden West Seed Co.
Zea mays L. · Maize
CAUSSADE SEMENCES
Poa trivialis L. · Rough bluegrass
Mommersteeg International B.V.
Zea mays L. · Maize
GOLDEN WEST SEED RESEARCH Co.
Solanum lycopersicum L. · Tomato
GOLDEN WEST SEED RESEARCH Co.
Gossypium hirsutum L. · Upland cotton
MiG.McDermit Int.Group
Lactuca sativa L. · Lettuce
LEEN DE MOS BV
Liatris Gaertn. ex Schreb. · Blazing Star
Plasmeyer, W.M.
Phlox paniculata L. · Garden phlox
Visser, P.
Beta vulgaris Sugar Beet Group · Sugar beet
Danisco Seed
Chrysanthemum L. · Chrysanthemum
Shoesmith, Leonard H.|deceased, late of Woking, England, by May Victoria Shoesmith, executrix
Gerbera L. · Gerbera
SCHREURS PETRUS JUDOCUS WILHELMUS