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.
Hordeum vulgare L. · Barley
Poznanska Hodowla Roslin Sp. z o.o
Festuca rubra L. · Red fescue
MOMMERSTEEG INTERNATIONAL| Mommersteeg International B.V.
Brassica rapa L. subsp. pekinensis (Lour.) Hanelt · Napa cabbage
Tokita Seed Co. Ltd., Saitama-Ken 330
Hydrangea L. · Hydrangea
Jacobus Gerardus Hofstede|Wilhelmus Jacobus Gerardus Hofstede
Chrysanthemum L. · Chrysanthemum
Knaap, Jacques C. M. Van der|De Lier, Netherlands
Pisum sativum L. · Pea
ROGERS SEED CO
Lilium L. · Lily
HOFFGAARDE BV (NL)
Lilium L. · Lily
HOFFGAARDE BV (NL)
Dianthus caryophyllus L. · Carnation
Maarten Jacob Tas
Dianthus caryophyllus L. · Carnation
Jan Johannes Hilverda
Lilium L. · Lily
VOF JAAP BOON (NL)
Dianthus caryophyllus L. · Carnation
Jan Johannes Hilverda
Festuca rubra L. · Red fescue
Euro Grass Breeding GmbH Co. KG
Zea mays L. subsp. mays (Maize Group) · Maize
RAGT SA (FR)
Avena sativa L. · Oat
Hodowla Buraka Pastewnego Skarbu Panstwa w Krakowie
Rosa L. · Rose
Pol
Triticum aestivum L. · Bread wheat
Hodowla Roslin Rolniczych Nasiona Kobierzyc Sp.z.o.o.
Secale cereale L. · Rye
DR GILBERT MELZ^^^GUDRUN MELZ
Linum usitatissimum L. · Common flax
BERGLAND-PHARMA| Bergland-Pharma GmbH & Co.KG
Helianthus annuus L. · Sunflower
KWS Saat AG, DE
Kalanchoe Adans. · Kalanchoe
POST| Joachim Post sen. (Gartenbau GbR)
Solanum tuberosum L. · Potato
VEREINIGTE SAATZUCHTEN EBSTORF-ROSCHE
Diascia Link & Otto · Twinspur
Hector Harrison
Hordeum vulgare L. · Barley
Josef Breun / Monika Breun