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.
Impatiens L. · Balsam
Mikkelsen, James C.|Ashtabula, OH
Brassica napus L. · Rapeseed
KWS Saat AG, DE
Triticum aestivum L. · Bread wheat
Svensson, Gunnar/Jönsson, Jan Ö.
Beta vulgaris Sugar Beet Group · Sugar beet
Betaseed Inc. (US)
Hordeum vulgare L. · Barley
DLF SEEDS A/S
x Triticosecale Wittm. ex A. Camus · Triticale
S. A. FLORIMOND DESPREZ VEUVE ET FILS
Trifolium pratense L. · Red clover
Vilmorin SA (FR)
Brassica oleracea L. (Broccoli Group) · Broccoli
Sakata Seed Corporation (SCC)
Brassica oleracea L. (Kohlrabi Group) · Kohlrabi
ROGGLI AG| Rudolf Roggli AG Pflanzenzucht/Samenbau
Hordeum vulgare L. · Barley
Syngenta UK Ltd
Euphorbia pulcherrima Willd. ex Klotzsch · Poinsettia
PLA POINSETTIA| PLA International ApS
Lolium x hybridum Hausskn. · Hybrid ryegrass
Norddeutsche Pflanzenzucht Hans-Georg Lembke KG
Triticum aestivum L. · Bread wheat
Hybritech Europe SNC (FR)
Brassica napus var. napus · Rapeseed
W. von Borries-Eckendorf GmbH & Co. Kommanditgesellschaft Dr. H. Graf von der Schulenburg
Brassica oleracea L. (White Cabbage Group) · White cabbage
Seminis Vegetable Seeds
Triticum aestivum L. · Bread wheat
SPANAKAKIS ANDREAS
Phaseolus vulgaris L. · Common bean
Seminis Vegetable Seeds
Hordeum vulgare L. · Barley
NICKERSON-ADVANTA
Brassica napus var. napus · Rapeseed
SCA ADRIEN MOMONT & FILS
Fragaria L. · Strawberry
L.M. Wassenaar c/o CPRO-DLO (vorher I.V.T.)
Chrysanthemum L. · Chrysanthemum
WILLIAM E DUFFETT
Triticum durum Desf. · Durum wheat
NDSU Research Foundation
Rosa L. · Rose
Poulsen Roser Aps (DK)
Phaseolus vulgaris L. · Common bean
Royal Sluis Vegetables BV (NL)