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.
Lolium perenne L. · Perennial ryegrass
PURE SEED TESTING
Lolium perenne L. · Perennial ryegrass
Weibull, Peder
Brachyscome Cass. · Swan River Daisy
Richard Anderson c/o Merricks Nursery
Helianthus annuus L. · Sunflower
MAS SEEDS
Tulipa L. · Tulip
V.O.F. HYBRIS
Allium cepa L. var. cepa · Onion
Syngenta Seeds B.V.
Cucumis sativus L. · Cucumber
Asgrow (IT)
Chrysanthemum L. · Chrysanthemum
WALTER H. JESSEL, JR. & WILLIAM E. DUFFETT
Chrysanthemum L. · Chrysanthemum
WALTER H. JESSEL, JR. & WILLIAM E. DUFFETT
Spinacia oleracea L. · Spinach
Bejo Zaden BV (NL)
Lolium perenne L. · Perennial ryegrass
Mommersteeg International BV (NL)
Solanum tuberosum L. · Potato
Saatzucht Firlbeck GmbH&Co.KG, DE
Pisum sativum L. · Pea
Syngenta Seeds
Apium graveolens L. var. rapaceum (Mill.) Gaud. · Celeriac
L. DÆHNFELDT A/S
Phaseolus vulgaris L. · Common bean
Royal Sluis Vegetables BV (NL)
Triticum aestivum L. · Bread wheat
Saatzucht Donau GmbH & Co.KG
Solanum tuberosum L. · Potato
Boreal Plant Breeding
Zea mays L. subsp. mays (Maize Group) · Maize
Caussade Semences SA (FR)
Solanum tuberosum L. · Potato
Niederösterreichische Saatbaugenossenschaft reg.Gen.m.b.H.
Solanum tuberosum L. · Potato
Marietta Krafft / Dr. Kartz von Kameke / Dr. Ludwig Krafft
Capsicum annuum L. · Bell pepper
Seminis Vegetable Seeds
Allium cepa L. var. cepa · Onion
Van der Have B.V.
Lolium perenne L. · Perennial ryegrass
Teagasc
Glycine max (L.) Merr. · Soybean
Thierry Gripon