Breeder
WHETMAN JOHN
19 US plant patents, granted between 2005 and 2010.
Filed under the WHETMAN name. Related entities are listed separately on the WHETMAN search, because a company and a person are not the same filer even when the name matches.
Still under patent — 13 cultivars
Soonest to come off patent first. You may not propagate these for sale until the date shown.
- WP05 YvesPP18828Dianthus plant named ‘WP05 Yves’UNDER PATENTSeptember 18, 2026
- WP05 EnidPP18842Dianthus plant named ‘WP05 Enid’UNDER PATENTDecember 21, 2026
- Coral ReefPP19660Dianthus plant named ‘Coral Reef’UNDER PATENTJanuary 14, 2028
- AlvaPP20312Dianthus plant named ‘Alva’UNDER PATENTJuly 24, 2028
- NOREENPP20369Dianthus plant named ‘NOREEN’UNDER PATENTJuly 24, 2028
- AmandaPP20370Dianthus plant named ‘Amanda’UNDER PATENTJuly 28, 2028
- WP PassionPP20440Dianthus plant named ‘WP Passion’UNDER PATENTJuly 29, 2028
- BRIGHT EYESPP20628Dianthus plant named ‘BRIGHT EYES’UNDER PATENTAugust 18, 2028
- StardustPP20999Dianthus plant named ‘Stardust’UNDER PATENTAugust 18, 2028
- WATERLOO SUNSETPP21080Dianthus plant named ‘WATERLOO SUNSET’UNDER PATENTAugust 18, 2028
- StarburstPP21162Dianthus plant named ‘Starburst’UNDER PATENTAugust 19, 2028
- WP 05 PP 22PP21395Dianthus plant named ‘WP 05 PP 22’UNDER PATENTJanuary 2, 2029
- StarlettePP21438Dianthus plant named ‘Starlette’UNDER PATENTJanuary 2, 2029
Already in the public domain — 6 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.
- Cranberry IcePP18342dianthus plant named ‘Cranberry Ice’PUBLIC DOMAINJune 22, 2026
- Strawberry SorbetPP18338Dianthus plant named ‘Strawberry Sorbet’PUBLIC DOMAINJune 17, 2026
- DEVON ESTHERPP18222Dianthus plant named ‘DEVON ESTHER’PUBLIC DOMAINJanuary 12, 2026
- Devon FloresPP17731Dianthus plant named ‘Devon Flores’PUBLIC DOMAINDecember 11, 2025
- Devon YolandePP16029Dianthus plant named ‘Devon Yolande’PUBLIC DOMAINNovember 25, 2024
- Devon StarlingPP16431Dianthus plant named ‘Devon Starling’PUBLIC DOMAINNovember 12, 2024