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.
Solanum tuberosum L. · Potato
CAITHNESS POTATO BREEDERS LTD
Chrysanthemum L. · Chrysanthemum
MR. WILLIAM E. DUFFETT
Solanum tuberosum L. · Potato
Bayerische Pflanzenzucht Gesellschaft eG & Co KG (DE)
Begonia L. · Begonia
LIMAPLANT B.V.
Zea mays L. subsp. mays (Maize Group) · Maize
KWS Saat AG, DE
Solanum melongena L. · Eggplant
GOLDEN WEST SEED RESEARCH Co.
Phaseolus vulgaris L. · Common bean
GOLDEN WEST SEED RESEARCH Co.
Brassica oleracea L. (Cauliflower Group) · Cauliflower
Golden West Seed Co.
Solanum lycopersicum L. · Tomato
GOLDEN WEST SEED RESEARCH Co.
Gossypium hirsutum L. · Upland cotton
D&PL Technology Holding Corp
Begonia L. · Begonia
MARGARETE ROHDE-RIEGER (BEGONIEN-RIEGER)
Zea mays L. subsp. mays (Maize Group) · Maize
KWS Saat AG, DE
Brassica oleracea L. (Savoy Cabbage Group) · Savoy cabbage
Zea mays L. subsp. mays (Maize Group) · Maize
Nickerson SA (FR)
Cucumis sativus L. · Cucumber
T.E.I. Irakliou
Beta vulgaris Sugar Beet Group · Sugar beet
Breeding Division of Hellenic Sugar Industry
Gossypium hirsutum L. · Upland cotton
Stimon-N. Gouskos
Cucumis sativus L. · Cucumber
Geoponiko Spiti AEBE
Brassica oleracea L. (Cauliflower Group) · Cauliflower
GOLDEN WEST SEED RESEARCH Co.
Gossypium hirsutum L. · Upland cotton
GOLDEN WEST SEED RESEARCH Co.
Zea mays L. subsp. mays (Maize Group) · Maize
MONSANTO COMPANY, US
Zea mays L. subsp. mays (Maize Group) · Maize
KWS Saat AG, DE
Phaseolus vulgaris L. · Common bean
GOLDEN WEST SEED RESEARCH Co.
Zea mays L. subsp. mays (Maize Group) · Maize
CIBA GEIGY SA (CH) (CH)