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.
Impatiens L. · Balsam
Mikkelsen, James C.|Ashtabula, OH
Chrysanthemum L. · Chrysanthemum
Vandenberg Cornelis P.|Salinas, CA
Brassica rapa L. subsp. pekinensis (Lour.) Hanelt · Napa cabbage
Hazera Seeds B.V.
Poa pratensis L. · Kentucky bluegrass
ZWAAN & DE WILJES
Solanum tuberosum L. · Potato
VERENIGDE KWEEKBEDRIJVEN (NL)
Avena sativa L. · Oat
Olsson, Gösta
Triticum aestivum L. · Bread wheat
Lemaire Deffontaines (FR)
Zea mays L. subsp. mays (Maize Group) · Maize
PIONEER HI-BRED INTERNATIONAL
Beta vulgaris Sugar Beet Group · Sugar beet
STRUBE GmbH&Co.KG, DE
Beta vulgaris Sugar Beet Group · Sugar beet
Delitzsch Pflanzenzucht Gmbh (DE)
Zea mays L. subsp. mays (Maize Group) · Maize
SEMENCES NICKERSON
Brassica oleracea L. (Cauliflower Group) · Cauliflower
Clause Semences SA (FR)
Lilium L. · Lily
GEBR VLETTER and DEN HAAN
Triticum aestivum L. · Bread wheat
Tourneur Freres (FR)
Brassica napus var. napus · Rapeseed
JENNAWAY| Dr. Richard Jennaway c/o Cambridge Plant Breeders Limited
Trifolium pratense L. · Red clover
Mommersteeg International BV (NL)
Beta vulgaris Sugar Beet Group · Sugar beet
KWS| KWS SAAT AG
Brassica oleracea L. (Cauliflower Group) · Cauliflower
Syngenta Seeds B.V.
Gerbera L. · Gerbera
Stravers, Lambertus J. M.|Kudelstaart, Netherlands
Lactuca sativa L. · Lettuce
Seminis Vegetable Seeds
Capsicum annuum L. · Bell pepper
Syngenta Seeds B.V.
Brassica oleracea L. (Savoy Cabbage Group) · Savoy cabbage
Syngenta Seeds B.V.
Trifolium pratense L. · Red clover
SZABOLCS| Szabolcs-Tetra MAG Kft.
Beta vulgaris Sugar Beet Group · Sugar beet
KWS| KWS SAAT AG