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.
Alstroemeria L. · Alstroemeria
Straaveren, Maurits C Van
Lilium L. · Lily
Koninklijke VAN ZANTEN Afdeling Bloembollen
Solanum tuberosum L. · Potato
Vilmorin SA (FR)
Hordeum vulgare L. · Barley
Hodowla Roslin Smolice Sp.z o.o Grupa IHAR
Chrysanthemum L. · Chrysanthemum
Jessel, Jr., Walter H.|Salinas, CA / Duffett, William E.|Salinas, CA
Fragaria L. · Strawberry
Hagerstrom, Marion
Chrysanthemum L. · Chrysanthemum
Chrysanthemum Breeders Association Research B.V.
Prunus domestica L. · European plum
Norman Glen Bradford (US)/Lowell Glen Bradford (US)
Kalanchoe Adans. · Kalanchoe
J.L.M. ARDENBURG
Dianthus caryophyllus L. · Carnation
STICHTING| Stichting Dienst Landbouwkundig Onderzoek
Brassica oleracea L. (Red Cabbage Group) · Red cabbage
GOLDEN WEST SEED RESEARCH Co.
Phaseolus vulgaris L. · Common bean
Franchi Sementi (IT)
Brassica oleracea L. (Red Cabbage Group) · Red cabbage
Geoponiko Spiti AEBE
Capsicum annuum L. · Bell pepper
PLANTICO HODOWLA I NASIENNICTWO OGRODNICZE ZIELONKI SP. Z O.O.
Solanum tuberosum L. · Potato
Vesa Velhartice a.s., CZ
Chrysanthemum L. · Chrysanthemum
Chrysanthemum Breeders Association Research B.V.
Beta vulgaris Fodder Beet Group · Mangelwurzel
Lietuvos agrarinių ir miškų mokslų centro filialas Žemdirbystės institutas
Hordeum vulgare L. · Barley
Hodowla Roslin Smolice Sp.z o.o Grupa IHAR
Raphanus sativus L. · Radish
Semenarna Ljubljana, SI
Zea mays L. subsp. mays (Maize Group) · Maize
Rustica Prograin Genetique SA (FR)
Tulipa L. · Tulip
FA. VAN DAM
Rubus L. · Blackberry
Peter Hauenstein
Chrysanthemum L. · Chrysanthemum
WALTER H. JESSEL, JR. & WILLIAM E. DUFFETT
Hydrangea L. · Hydrangea
PREISIG WALTER