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.
Pisum sativum L. · Pea
Unisigma GIE (FR)/Zeneca Seeds UK Limited (GB)
Solanum lycopersicum L. · Tomato
Les Graines Caillard Sa (FR)
Beta vulgaris Sugar Beet Group · Sugar beet
SESVanderHave N.V./S.A.
Brassica oleracea L. (Savoy Cabbage Group) · Savoy cabbage
Syngenta Seeds B.V.
Pisum sativum L. · Pea
Limagrain UK
Lolium multiflorum Lam. · Italian ryegrass
Dunns Seed and Grain Ltd., U.K.
Lactuca sativa L. · Lettuce
VAN DEN BERG (NL)
Beta vulgaris Sugar Beet Group · Sugar beet
MariboHilleshög ApS,DK
Zea mays L. subsp. mays (Maize Group) · Maize
P A G SEEDS (US)
Hordeum vulgare L. · Barley
NICKERSON-ADVANTA
Hordeum vulgare L. · Barley
Nordsaat Saatzuchtgesellschaft m.b.H. (DE)
Chrysanthemum L. · Chrysanthemum
Ott, Cleveland|677 Grater Avenue Graterford, PA 19426
Chrysanthemum L. · Chrysanthemum
MR HERMAN HELLBERG
Chrysanthemum L. · Chrysanthemum
Vandenberg Cornelis P
Triticum aestivum L. · Bread wheat
Verneuil Recherche SA (FR)
Begonia L. · Begonia
Man, Jan|Lisse, Netherlands
Cucumis sativus L. · Cucumber
DE RUITER SEEDS
Lilium L. · Lily
SCHENK| Ing. Pieter Cornelis Schenk
Hordeum vulgare L. · Barley
NICKERSON-ADVANTA
Brassica napus var. napus · Rapeseed
Danisco Seed, DK
Avena sativa L. · Oat
Nilsson, Bengt
Capsicum annuum L. · Bell pepper
Syngenta Seeds B.V.
Lolium perenne L. · Perennial ryegrass
Mommersteeg International BV (NL)
Chrysanthemum L. · Chrysanthemum
VandenBerg, C P