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.
Brassica napus L. · Rapeseed
Rene Baratin
Zea mays L. subsp. mays (Maize Group) · Maize
Pioneer Hi-Bred International Inc (US)
Begonia L. · Begonia
Man, Jan|Lisse, Netherlands
Beta vulgaris Sugar Beet Group · Sugar beet
Maribo Seed (DK)
Pisum sativum L. · Pea
MANSHOLT'S VEREDELINGS-BEDRIJF BV (NL)
Solanum tuberosum L. · Potato
SaKa Pflanzenzucht GmbH & Co. KG (DE)
Pelargonium L'Hér. ex Ait. · Geranium
Siegfried KLEMM (DE)
Zea mays L. subsp. mays (Maize Group) · Maize
Holden Foundation Seeds Inc. (US)
Triticum aestivum L. · Bread wheat
Nickerson International Research S.N.C.
Zea mays L. subsp. mays (Maize Group) · Maize
PIONEER HI-BRED INTERNATIONAL
Beta vulgaris Sugar Beet Group · Sugar beet
Maribo France SA (FR)
Rosa L. · Rose
W. Kordes Sohne Rosenschulen GmbH & Co KG| DE
Chrysanthemum L. · Chrysanthemum
Fides
Hordeum vulgare L. · Barley
HAO-DEMETER - Cereal Institute
Avena sativa L. · Oat
Semundo BV (NL)
Zea mays L. · Maize
Maisadour Semences, FR
Zea mays L. subsp. mays (Maize Group) · Maize
KWS SAAT SE & CO.KGAA
Triticum durum Desf. · Durum wheat
B.G.I. INC.
Euphorbia pulcherrima Willd. ex Klotzsch · Poinsettia
Paul Ecke Ranch
Helianthus annuus L. · Sunflower
Maisadour Societe Cooperative Agricole (FR)
Rosa L. · Rose
Samuel McGredy
Beta vulgaris Sugar Beet Group · Sugar beet
KWS SAAT SE & CO.KGAA
Phaseolus vulgaris L. · Common bean
Hybrids Ellas Abee
Triticum aestivum L. · Bread wheat
P. Stankova, D. Boyadzhieva, A. Dimov, M. Mangova, E. Merdzhanova