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
Monsanto Technology LLC, US
Zea mays L. subsp. mays (Maize Group) · Maize
Rustica Prograin Genetique SA (FR)
Allium cepa L. var. cepa · Onion
Van der Have B.V.
Lolium perenne L. · Perennial ryegrass
Euro Grass Breeding GmbH Co. KG
Brassica oleracea L. (Cauliflower Group) · Cauliflower
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
Beta vulgaris Sugar Beet Group · Sugar beet
Syngenta Seeds
Triticum aestivum L. · Bread wheat
Hybritech Europe SNC (FR)
Rosa L. · Rose
Dickson Nurseries Ltd
Linum usitatissimum L. · Common flax
Cooperative Liniere de Fontaine-Cany
Rosa L. · Rose
Rosen Tantau KG
Rosa L. · Rose
Stanley G. Marciel
Valerianella locusta (L.) Laterr. · Corn salad
HOFMANN| Joh. Thomas Hofmann KG
Zea mays L. subsp. mays (Maize Group) · Maize
R 2n (FR)
Gossypium hirsutum L. · Upland cotton
CALIFORNIA PLANTING COTTON SEED DISTRIBUTORS
Chrysanthemum L. · Chrysanthemum
Delta-Stek Breeding B.V.
Lolium perenne L. · Perennial ryegrass
Ampac Seed company (US)
Beta vulgaris Sugar Beet Group · Sugar beet
Maribo Seed International ApS, DK
Petroselinum crispum (Mill.) Nyman ex A. W. Hill · Parsley
Sakata Seed Corporation
Chrysanthemum L. · Chrysanthemum
Knaap, Jacques C. M. Van der|De Lier, Netherlands
Poa pratensis L. · Kentucky bluegrass
Jacklin Seed Company
Brassica napus var. napus · Rapeseed
Serasem (FR)/Institut National de la Recherche Agronomique (FR)
Chrysanthemum L. · Chrysanthemum
Lintott, Keith|Bognor Regis, England
Calluna vulgaris (L.) Hull · Common heather
MAASEN FRANZ EN CANDERS GERD
Hordeum vulgare L. · Barley
INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR