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.
Chrysanthemum L. · Chrysanthemum
MR CORNELIS P VANDENBERG
Chrysanthemum L. · Chrysanthemum
WALTER H. JESSEL, JR. & WILLIAM E. DUFFETT
Alstroemeria L. · Alstroemeria
G.J.Rosema
Chrysanthemum L. · Chrysanthemum
HOEK BREEDING B.V.
Kalanchoe Adans. · Kalanchoe
Mikkelsen, James C.|Ashtabula, OH / Berg, Cornelis P. Van den|Ashtabula, OH
Chrysanthemum L. · Chrysanthemum
Duffett, William E.|Salinas, CA
Chrysanthemum L. · Chrysanthemum
HOEK BREEDING BV
Chrysanthemum L. · Chrysanthemum
Fides Goldstock Breeding
Chrysanthemum L. · Chrysanthemum
Duffett, William E.|Salinas, CA
Gladiolus L. · Gladiolus
Cohen Avner
Solanum lycopersicum L. · Tomato
BHN RESEARCH
Gossypium hirsutum L. · Upland cotton
Seed Source Inc.
Secale cereale L. · Rye
Alicja Ramenda
Cucumis melo L. · Melon
GOLDEN WEST SEED RESEARCH Co.
Triticum aestivum L. · Bread wheat
VERENIGDE KWEEKBEDRIJVEN (NL)/Union Nationale des Cooperatives Agricoles de Collecte Sigma (FR)
Festuca rubra L. · Red fescue
Nilsson, Ernst/Helmbring, Evert
Lactuca sativa L. · Lettuce
Landwirtschafliches Versuchszentrum Steiermark
Brassica oleracea L. (Savoy Cabbage Group) · Savoy cabbage
Chrysanthemum L. · Chrysanthemum
HOEK BREEDING BV
Chrysanthemum L. · Chrysanthemum
PERIFLEUR (HOLDINGS) LTD
Nigella
Freek Zandbergen
Dianthus caryophyllus L. · Carnation
LEK-ZONEN
Chrysanthemum L. · Chrysanthemum
HOEK BREEDING BV
Rosa L. · Rose
GARTNERIET SKJOLDVANG A/S