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.
Arrhenatherum elatius (L.) P. Beauv. ex J. Presl & C. Pres · False oat-grass
Brassica oleracea L. (Broccoli Group) · Broccoli
Lolium perenne L. · Perennial ryegrass
Pisum sativum L. · Pea
Hordeum vulgare L. · Barley
Brassica oleracea L. (Savoy Cabbage Group) · Savoy cabbage
Solanum lycopersicum L. · Tomato
Syngenta Seeds, NL
Pisum sativum L. · Pea
Nunhems Zaden BV (NL)
Brassica napus var. napus · Rapeseed
Serasem (FR)/Institut National de la Recherche Agronomique (FR)
Prunus persica (L.) Batsch · Peach
ZAIGER FLOYD
Lactuca sativa L. · Lettuce
Harris Moran Seed Company
Solanum lycopersicum L. · Tomato
Harris Moran Seed Company
Hordeum vulgare L. · Barley
Florimond Desprez Veuve et Fils, FR
Chrysanthemum L. · Chrysanthemum
Wendy R Bergman
Chrysanthemum L. · Chrysanthemum
CORNELIS P. VANDENBERG^^^Wendy Bergman
Chrysanthemum L. · Chrysanthemum
Duffett, William E.|Salinas, CA
Chrysanthemum L. · Chrysanthemum
Chrysanthemum Breeders Association Research B.V.
Chrysanthemum L. · Chrysanthemum
WALTER H. JESSEL, JR. & WILLIAM E. DUFFETT
Chrysanthemum L. · Chrysanthemum
Knaap, Jacques C. M. Van der|De Lier, Netherlands
Lactuca sativa L. · Lettuce
The State of Israel - Ministry of Agriculture and Rural Development - Agricultural Research Organization (ARO)^^^Hazera (1939) Ltd.
Solanum lycopersicum L. · Tomato
L. Zagorcheva, M. Stoyanov, L. Stamova
Triticum aestivum L. · Bread wheat
HAO-DEMETER - Cereal Institute
Lactuca sativa L. · Lettuce
Seminis Vegetable Seeds
Brassica oleracea L. (White Cabbage Group) · White cabbage
Bejo Zaden (NL)