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.
Solanum tuberosum L. · Potato
KARTZ VON KAMEKE
Pisum sativum L. · Pea
Seminis Vegetable Seeds
Pisum sativum L. · Pea
Seminis Vegetable Seeds
Triticum aestivum L. · Bread wheat
KWS Lochow
Solanum tuberosum L. · Potato
RADEMAKERS M. (NL)
Beta vulgaris Sugar Beet Group · Sugar beet
SUGAR BEET RESEARCH INSTITUTE
Aglaonema Schott. · Chinese Evergreen
DR FRANK B. BROWN
Brassica napus L. · Rapeseed
PIONEER OVERSEAS CORPORATION
Vaccinium L. · Bilberry
Wood, Franklin H.|Hamilton, New Zealand
Festuca rubra L. · Red fescue
L. DÆHNFELDT A/S
Impatiens L. · Balsam
Mikkelsen, James C.|Ashtabula, OH
Triticum durum Desf. · Durum wheat
GOLDEN WEST SEED RESEARCH Co.
Hordeum vulgare L. · Barley
INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR
Solanum tuberosum L. · Potato
PRUMMEL (NL)
Cucurbita pepo L. · Field pumpkin
Petoseed, US
Beta vulgaris Sugar Beet Group · Sugar beet
MariboHilleshög ApS,DK
Triticum durum Desf. · Durum wheat
Syngenta Participations AG
Zea mays L. · Maize
Pflanzenzucht Oberlimpurg Herrn Dr. Peter Franck
Cichorium endivia L. · Endive
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
x Festulolium Aschers. et Graebn. · Festulolium
ABERYSTWYTH UNIVERSITY
Rosa L. · Rose
de Ruiter, G
Beta vulgaris Sugar Beet Group · Sugar beet
Lion Seeds LTD (GB)
Solanum lycopersicum L. · Tomato
Enza Zaden B.V.
Raphanus sativus L. · Radish
Christoph Kleinhanns / Margit Hucke in Saatzuchtstation Eisleben