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.
Capsicum annuum L. · Bell pepper
Enza Zaden Beheer B.V.
Kalanchoe Adans. · Kalanchoe
A/S KNUD JEPSEN
Fuchsia L. · Fuchsia
Theo Grünewald
Phaseolus vulgaris L. · Common bean
Harris Moran Seed Company
Zea mays L. subsp. mays (Maize Group) · Maize
Dr Hans Rolf Spath (DE)
Chrysanthemum L. · Chrysanthemum
Petusky, Kerry S.|West Chicago, IL
Saintpaulia ionantha H. Wendl. · African violet
Green Circle Growers
Lactuca sativa L. · Lettuce
Vilmorin, S.A.
Pisum sativum L. · Pea
NEBELUNG GMBH| Bruno Nebelung GmbH
Gossypium hirsutum L. · Upland cotton
The Lubrizol Corporation
Avena sativa L. · Oat
Hodowla Roslin Strzelce Sp z.o.o. Grupa IHAR
Phaseolus vulgaris L. · Common bean
Leakey Dr C L A (GB)
Gossypium hirsutum L. · Upland cotton
STONEVILLE PEDIGREED SEED COMPANY
Callistephus chinensis (L.) Nees · China aster
Seki Akio|Kumagai Saburo
Asparagus officinalis L. · Asparagus
Erbe/Erbengemeinschaft Helmut Steiner (Grünspargelzucht)
Asparagus officinalis L. · Asparagus
Erbe/Erbengemeinschaft Helmut Steiner (Grünspargelzucht)
Alstroemeria L. · Alstroemeria
M. C. V. STAAVEREN
Dianthus L. · Carnation
VAN STAAVEREN BV (NL)
Brassica napus var. napus · Rapeseed
Hodowla Roslin Strzelce Sp z.o.o. Grupa IHAR
Allium cepa L. var. cepa · Onion
Les Graines Caillard Sa (FR)
Solanum lycopersicum L. · Tomato
GOLDEN WEST SEED RESEARCH Co.
Dianthus L. · Carnation
HILVERDA B.V. (NL)
Pisum sativum L. · Pea
SLUIS & GROOT BV (NL)
Prunus persica (L.) Batsch var. nucipersica (Suckow) C. K. Schneid. · Nectarine
Anderson, Fred W.|Merced, CA