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
Meek, Jack M.|Salinas, CA / Duffett, William E.|Salinas, CA
Cucumis sativus L. · Cucumber
Seminis Vegetable Seeds
Chrysanthemum L. · Chrysanthemum
WILLIAM E DUFFETT
Zea mays L. subsp. mays (Maize Group) · Maize
D J Van der Have BV (NL)
Gerbera L. · Gerbera
BOERLAGE PETRUS EGIDIUS
Nicotiana tabacum L. · Tobacco
Asparagus officinalis L. · Asparagus
Aloys Rosen (Deutsche Spargelzucht)
Capsicum annuum L. · Bell pepper
Golden West Seed Co.
Chrysanthemum L. · Chrysanthemum
Fides B.V.
Zea mays L. subsp. mays (Maize Group) · Maize
Cebeco Saaten GmbH (DE)
Helianthus tuberosus L. · Jerusalem artichoke
Capsicum annuum L. · Bell pepper
Ing. Jiřina Teclová, LIBERA (CZ)
Lilium L. · Lily
Ing. P. C. Schenk
Cucurbita pepo L. · Field pumpkin
DAEHNFELD L. A/S
Gerbera L. · Gerbera
EVELEENS JAN
Phaseolus vulgaris L. · Common bean
Cooperative Agricole de la Vallee Moyenne de la Loire (FR)
Cucurbita pepo L. · Field pumpkin
Petoseed, US
Impatiens L. · Balsam
NORBERT BULL
Phaseolus vulgaris L. · Common bean
SEMINOR (FR)
Alstroemeria L. · Alstroemeria
Cor Van Duyn
Capsicum annuum L. · Bell pepper
HAO-DEMETER Institute of Plant Breeding and Genetic Resources
Lactuca sativa L. · Lettuce
GOLDEN WEST SEED RESEARCH Co.
Matthiola incana (L.) R. Br. · Hoary stock
Produkcja i Hodowla Roslin Ogrodniczych Krzeszowice sp. z o.o.
Cucurbita pepo L. · Field pumpkin
ZERAIM SEED GROWERS COMPANY LTD.