Genus
Pulmonaria
27 US plant patents have been granted in this genus. 19 are already in the public domain — anyone may propagate and sell them. The next of the 8 still protected comes off patent on May 15, 2028.
Still under patent — 8 cultivars
Soonest to come off patent first. You may not propagate these for sale until the date shown.
- Silver BouquetPP20059Pulmonaria plant named ‘Silver Bouquet’UNDER PATENTMay 15, 2028
- Twinkle ToesPP30258Pulmonaria plant named ‘Twinkle Toes’UNDER PATENTFebruary 1, 2038
- LISA MARIEPP31226Pulmonaria plant named ‘LISA MARIE’UNDER PATENTJuly 12, 2038
- Pretty in PinkPP31284Pulmonaria plant named ‘Pretty in Pink’UNDER PATENTFebruary 1, 2039
- Spot OnPP33063Pulmonaria plant named ‘Spot On’UNDER PATENTOctober 7, 2040
- TNPULRASFROPP35154Pulmonaria plant named ‘TNPULRASFRO’UNDER PATENTSeptember 27, 2042
- Pink-a-BluePP35232Pulmonaria plant named ‘Pink-a-Blue’UNDER PATENTNovember 22, 2042
- Silver ScimitarPP35669Pulmonaria plant named ‘Silver Scimitar’UNDER PATENTMarch 1, 2043
Already in the public domain — 19 cultivars
Most recently freed first. Anyone may propagate and sell these plants — though the name it is sold under may still be a live trademark.
- Pink HazePP14307Pulmonaria plant named ‘Pink Haze’PUBLIC DOMAINNovember 8, 2022
- Bubble GumPP14086Pulmonaria plant named ‘Bubble Gum’PUBLIC DOMAINAugust 6, 2022
- Mountain MagicPP14014Pulmonaria plant named ‘Mountain Magic’PUBLIC DOMAINJune 12, 2022
- Irish SpringPP14015Pulmonaria plant named ‘Irish Spring’PUBLIC DOMAINJune 12, 2022
- Baby BluePP13682Pulmonaria plant named ‘Baby Blue’PUBLIC DOMAINFebruary 19, 2022
- MoonshinePP13686Pulmonaria plant named ‘Moonshine’PUBLIC DOMAINFebruary 19, 2022
- Silver ShimmersPP13290Pulmonaria plant named ‘Silver Shimmers’PUBLIC DOMAINNovember 20, 2021
- Northern LightsPP13124Pulmonaria plant named ‘Northern Lights’PUBLIC DOMAINJune 28, 2021
- Dark VaderPP12333Pulmonaria plant named ‘Dark Vader’PUBLIC DOMAINJuly 31, 2020
- May BouquetPP12336Pulmonaria plant named ‘May Bouquet’PUBLIC DOMAINJuly 31, 2020
- High ContrastPP12337Pulmonaria plant named ‘High Contrast’PUBLIC DOMAINJuly 31, 2020
- Emerald IslesPP12339Pulmonaria plant named ‘Emerald Isles’PUBLIC DOMAINJuly 31, 2020
- Raspberry IcePP12538Pulmonaria plant named ‘Raspberry Ice’PUBLIC DOMAINJuly 31, 2020
- OcupolPP12931Pulmonaria plant named ‘Ocupol’PUBLIC DOMAINMay 8, 2020
- Trevi FountainPP13047Pulmonaria plant named ‘Trevi Fountain’PUBLIC DOMAINApril 10, 2020
- Silver StreamersPP12135Pulmonaria plant named ‘Silver Streamers’PUBLIC DOMAINJune 2, 2019
- Raspberry SplashPP12138Pulmonaria plant named ‘Raspberry Splash’PUBLIC DOMAINJune 2, 2019
- Victorian BroochPP11234Pulmonaria plant named `Victorian Brooch`PUBLIC DOMAINJanuary 26, 2018
- Berries and CreamPP10597Pulmonaria plant named `Berries and Cream`PUBLIC DOMAINFebruary 10, 2017
A patent expiring frees the plant, and its cultivar name comes with it — cultivar names cannot be trademarked, so they are always free to use. What it does not free is any brand name the plant is marketed under. Those are trademarks and renew indefinitely.