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 lycopersicum L. · Tomato
Rijk Zwaan Zaadteelt en Zaadhandel BV (NL)
Aster L. · Aster
MARCEL MOERMAN
Chrysanthemum L. · Chrysanthemum
PETER S HESSE
Gladiolus L. · Gladiolus
Konynenburg & Mark BV (NL)
Brassica napus var. napus · Rapeseed
Rustica Prograin Genetique SA (FR)
Rosa L. · Rose
WARNERS ROSES
Rosa L. · Rose
WARNERS ROSES
Rhododendron L. · Azalea
KARL GLASER
Zea mays L. subsp. mays (Maize Group) · Maize
ASGROW
Chrysanthemum L. · Chrysanthemum
WILLIAM E DUFFETT
Pisum sativum L. · Pea
CRITES-MOSCOW GROWERS INC.
Triticum aestivum L. · Bread wheat
Plant Breeding International Cambridge Ltd (GB)
Begonia L. · Begonia
Nilsson, Peter/Nilsson, Christer
Phaseolus vulgaris L. · Common bean
GRAINES GAUTIER, S.A.
Lactuca sativa L. · Lettuce
Syngenta Seeds, NL
Triticum aestivum L. subsp. spelta (L.) Thell. · Spelt
Dr. Christoph Kling in Universität Hohenheim - Landessaatzuchtanstalt -
Hordeum vulgare L. · Barley
Florimond Desprez Veuve et Fils, FR
Chrysanthemum L. · Chrysanthemum
WALTER H. JESSEL, JR. & WILLIAM E. DUFFETT
Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass
DLF-TRIFOLIUM A/S
Lolium x hybridum Hausskn. · Hybrid ryegrass
SCHITEA MARIAMARTURA TEODOR
Lactuca sativa L. · Lettuce
Seminis Vegetable Seeds
Lolium multiflorum Lam. var. westerwoldicum Wittm. · Westerwolds Ryegrass
Carneau Freres SA (FR)
Hordeum vulgare L. · Barley
Carlsberg Research (DK)
Beta vulgaris Sugar Beet Group · Sugar beet
STRUBE HERMANN| Dr. Hermann Strube