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.
Lactuca sativa L. · Lettuce
Bruinsma (NL)
Impatiens L. · Balsam
Mikkelsen, James C.|Ashtabula, OH
Zea mays L. subsp. mays (Maize Group) · Maize
Maisadour Societe Cooperative Agricole (FR)
Lolium perenne L. · Perennial ryegrass
DLF SEEDS A/S
Beta vulgaris Sugar Beet Group · Sugar beet
SESVANDERHAVENV
Zea mays L. · Maize
Orsem Hybrides ZA de l'Hermitière
Zea mays L. · Maize
CAUSSADE SEMENCES
Brassica napus L. · Rapeseed
Rene Baratin
Oryza sativa L. · Rice
Golden West Seed Co.
Chrysanthemum L. · Chrysanthemum
Knaap, Jacques C. M. Van der|De Lier, Netherlands
Zea mays L. subsp. mays (Maize Group) · Maize
KWS Kleinwanzlebener Saatzucht AG (DE)
Solanum tuberosum L. · Potato
CLAUSE, S.A.
Hordeum vulgare L. · Barley
CARLSBERG A/S
Capsicum annuum L. · Bell pepper
Syngenta Seeds B.V.
Pisum sativum L. · Pea
W. Atlee Burpee Company
Impatiens L. · Balsam
Lyndon W Drewlow
Zea mays L. · Maize
KWS SAAT SE & CO.KGAA
Daucus carota L. · Carrot
Clause, F
Kalanchoe Adans. · Kalanchoe
Shukron S.
Cichorium endivia L. · Endive
Enza Zaden (NL)
Zea mays L. subsp. mays (Maize Group) · Maize
Coop de Pau SCA (FR)
Pisum sativum L. · Pea
Andre Blondeau Semences (FR)
Hordeum vulgare L. · Barley
LEMAIRE DEFFONTAINES S.A.S.
Brassica rapa L. subsp. pekinensis (Lour.) Hanelt · Napa cabbage
Seminis Vegetable Seeds