Genus
Ipomoea
102 US plant patents have been granted in this genus. 15 are already in the public domain — anyone may propagate and sell them. The next of the 87 still protected comes off patent on May 7, 2027.
Still under patent — 87 cultivars
Soonest to come off patent first. You may not propagate these for sale until the date shown.
- Kyuikukan 4PP19165Ipomoea plant named ‘Kyuikukan 4’UNDER PATENTMay 7, 2027
- Kyuikukan 3PP19421Ipomoea plant named ‘Kyuikukan 3’UNDER PATENTMay 7, 2027
- Kyuikukan 2PP19448Ipomoea plant named ‘Kyuikukan 2’UNDER PATENTMay 7, 2027
- EvangelinePP19710Sweetpotato plant named ‘Evangeline’UNDER PATENTJuly 25, 2027
- Murasaki-29PP19955Sweetpotato plant named ‘Murasaki-29’UNDER PATENTOctober 18, 2027
- Mahon YamPP20666Sweet potato plant named ‘Mahon Yam’UNDER PATENTJuly 7, 2028
- Seki BlahrtPP20813Ipomoea plant named ‘Seki Blahrt’UNDER PATENTDecember 11, 2028
- Seki BlapalmPP20880Ipomoea plant named ‘Seki Blapalm’UNDER PATENTDecember 11, 2028
- Seki LimPP20616Ipomoea plant named ‘Seki Lim’UNDER PATENTDecember 12, 2028
- Kyuikukan 5PP21102Ipomoea plant named ‘Kyuikukan 5’UNDER PATENTMarch 23, 2029
- FnpalligrPP21714Ipomoea plant named ‘Fnpalligr’UNDER PATENTAugust 25, 2029
- FnpalblkPP21726Ipomoea plant named ‘Fnpalblk’UNDER PATENTAugust 25, 2029
- FnpalrusrdPP21741Ipomoea plant named ‘Fnpalrusrd’UNDER PATENTAugust 25, 2029
- FncorrePP21742Ipomoea plant named ‘Fncorre’UNDER PATENTAugust 25, 2029
- NCORNSP-011MNLCPP21743Sweetpotato plant named ‘NCORNSP-011MNLC’UNDER PATENTNovember 9, 2029
- NCORNSP-012EMLCPP21744Sweetpotato plant named ‘NCORNSP-012EMLC’UNDER PATENTNovember 9, 2029
- IPOSGLGREPP22279Ipomoea plant named ‘IPOSGLGRE’UNDER PATENTSeptember 2, 2030
- IPOSGDEEPURPP22323Ipomoea plant named ‘IPOSGDEEPUR’UNDER PATENTSeptember 2, 2030
- IposghpurPP22324Ipomoea plant named ‘Iposghpur’UNDER PATENTSeptember 2, 2030
- IPOSGBROPP22325Ipomoea plant named ‘IPOSGBRO’UNDER PATENTSeptember 2, 2030
- BonitaPP22719Sweetpotato plant named ‘Bonita’UNDER PATENTOctober 4, 2030
- NCORNSP-013GNLCPP23612Sweetpotato plant named ‘NCORNSP-013GNLC’UNDER PATENTApril 26, 2031
- NCORNSP-015SCPIPP23613Sweetpotato plant named ‘NCORNSP-015SCPI’UNDER PATENTApril 27, 2031
- NCORNSP-014BWPIPP23651Sweetpotato plant named ‘NCORNSP-014BWPI’UNDER PATENTApril 28, 2031
- 05-111PP23761Sweetpotato plant named ‘05-111’UNDER PATENTNovember 22, 2031
- 07-146PP23785Sweetpotato plant named ‘07-146’UNDER PATENTNovember 22, 2031
- CX-1PP27197Sweetpotato plant named ‘CX-1’UNDER PATENTDecember 5, 2031
- Kelly RayPP24446Ipomoea plant named ‘Kelly Ray’UNDER PATENTJune 18, 2032
- Grand MarblePP24668Ipomoea plant named ‘Grand Marble’UNDER PATENTNovember 29, 2032
- LA04-175PP25308Sweetpotato plant named ‘LA04-175’UNDER PATENTMay 14, 2033
- ISGBU07-0PP25580Ipomoea plant named ‘ISGBU07-0’UNDER PATENTAugust 1, 2033
- DAYBREAKPP26719Ipomoea plant named ‘DAYBREAK’UNDER PATENTSeptember 6, 2034
- LA06-52PP26735Sweetpotato plant named ‘LA06-52’UNDER PATENTSeptember 13, 2034
- BalsolablackPP26528Ipomoea plant named ‘Balsolablack’UNDER PATENTJanuary 12, 2035
- BalsolalimePP26552Ipomoea plant named ‘Balsolalime’UNDER PATENTJanuary 12, 2035
- BalsolaredPP26686Ipomoea plant named ‘Balsolared’UNDER PATENTJanuary 12, 2035
- KPOZ0001PP27940Ipomoea plant named ‘KPOZ0001’UNDER PATENTNovember 13, 2035
- NCORNSP-019SCSHLMPP28318Sweetpotato plant named ‘NCORNSP-019SCSHLM’UNDER PATENTNovember 19, 2035
- BalspotimePP28588Ipomoea plant named ‘Balspotime’UNDER PATENTMay 7, 2036
- BalspotackPP28555Ipomoea plant named ‘Balspotack’UNDER PATENTMay 8, 2036
- BalspotredPP28587Ipomoea plant named ‘Balspotred’UNDER PATENTMay 8, 2036
- V12B.445PP29941Sweetpotato plant named ‘V12B.445’UNDER PATENTDecember 28, 2036
- NCORNSP-020BWGWEPP29803Sweetpotato plant named ‘NCORNSP-020BWGWE’UNDER PATENTDecember 29, 2036
- NCORNSP-023BWAMPP29858Sweetpotato plant named ‘NCORNSP-023BWAM’UNDER PATENTDecember 29, 2036
- NCORNSP-021SHJBPP29378Sweetpotato plant named ‘NCORNSP-021SHJB’UNDER PATENTDecember 30, 2036
- BalsotowimePP29510Ipomoea plant named ‘Balsotowime’UNDER PATENTMarch 1, 2037
- BalsotowacPP29511Ipomoea plant named ‘Balsotowac’UNDER PATENTMarch 1, 2037
- BalsolablimPP29512Ipomoea plant named ‘Balsolablim’UNDER PATENTMarch 1, 2037
- BalsolalimliPP29536Ipomoea plant named ‘Balsolalimli’UNDER PATENTMarch 1, 2037
- NC05-198PP29942Sweetpotato plant named ‘NC05-198’UNDER PATENTApril 14, 2037
- BalsolabartPP30598Ipomoea plant named ‘Balsolabart’UNDER PATENTMarch 16, 2038
- BalsolalimartPP30599Ipomoea plant named ‘Balsolalimart’UNDER PATENTMarch 16, 2038
- BalspotbartPP30637Ipomoea plant named ‘Balspotbart’UNDER PATENTMarch 16, 2038
- BalsolaredarPP30638Ipomoea plant named ‘Balsolaredar’UNDER PATENTMarch 16, 2038
- BalspotimartPP30794Ipomoea plant named ‘Balspotimart’UNDER PATENTMarch 16, 2038
- LA17-120PP31968Sweetpotato plant named ‘LA17-120’UNDER PATENTFebruary 8, 2039
- LA17-40PP31969Sweetpotato plant named ‘LA17-40’UNDER PATENTFebruary 8, 2039
- LA08-21PPP31970Sweetpotato plant named ‘LA08-21P’UNDER PATENTFebruary 8, 2039
- LA15-527PP32002Sweetpotato plant named ‘LA15-527’UNDER PATENTFebruary 8, 2039
- LA17-54PP32003Sweetpotato plant named ‘LA17-54’UNDER PATENTFebruary 8, 2039
- LA17-31PP32020Sweetpotato plant named ‘LA17-31’UNDER PATENTFebruary 8, 2039
- LA13-81PP32021Sweetpotato plant named ‘LA13-81’UNDER PATENTFebruary 8, 2039
- NCORNSP-024SCRIPP31837Sweetpotato plant named ‘NCORNSP-024SCRI’UNDER PATENTMarch 8, 2039
- NCORNSP-025SCKPP31855Sweetpotato plant named ‘NCORNSP-025SCK’UNDER PATENTMarch 8, 2039
- ISGDP01-1PP31725Ipomoea plant named ‘ISGDP01-1’UNDER PATENTJune 4, 2039
- ISGHR06-1PP31726Ipomoea plant named ‘ISGHR06-1’UNDER PATENTJune 4, 2039
- ISGHG04-1PP31727Ipomoea plant named ‘ISGHG04-1’UNDER PATENTJune 4, 2039
- ISGBR03-1PP31753Ipomoea plant named ‘ISGBR03-1’UNDER PATENTJune 4, 2039
- ISGHP05-2PP32057Sweet potato plant named ‘ISGHP05-2’UNDER PATENTJune 4, 2039
- ISGLG02-1PP32198Sweet potato plant named ‘ISGLG02-1’UNDER PATENTJune 4, 2039
- ISGGS10-0PP32245Sweet potato plant named ‘ISGGS10-0’UNDER PATENTJune 4, 2039
- FukumurasakiPP32832Ipomoea batatas plant named ‘Fukumurasaki’UNDER PATENTJune 8, 2039
- BalsotowlimPP31800Ipomoea plant named ‘Balsotowlim’UNDER PATENTJuly 3, 2039
- Charleston-163PP32142Sweetpotato plant named ‘Charleston-163’UNDER PATENTSeptember 3, 2039
- ChurakanasaPP34501Ipomoea batatas plant named ‘Churakanasa’UNDER PATENTMarch 15, 2041
- NCORNSP-027SCMGPP34146Sweetpotato plant named ‘NCORNSP-027SCMG’UNDER PATENTApril 30, 2041
- NCPUR13-0315PP34093Sweetpotato plant named ‘NCPUR13-0315’UNDER PATENTJuly 15, 2041
- NC04-0531PP34125Sweetpotato plant named ‘NC04-0531’UNDER PATENTJuly 15, 2041
- NCPUR13-0030PP34126Sweetpotato plant named ‘NCPUR13-0030’UNDER PATENTJuly 15, 2041
- NCORNSP-030ILPLPP35096Sweetpotato plant named ‘NCORNSP-030ILPL’UNDER PATENTNovember 15, 2042
- NCORNSP-029SCBCPP35148Sweetpotato vine named ‘NCORNSP-029SCBC’UNDER PATENTNovember 15, 2042
- NCORNSP-028SCKLPP35702Sweetpotato plant named ‘NCORNSP-028SCKL’UNDER PATENTNovember 15, 2042
- NCORNSP-031SHMGPP36237Sweetpotato plant named ‘NCORNSP-031SHMG’UNDER PATENTJanuary 24, 2044
- NCORNSP-032SCRHIPP36238Sweetpotato plant named ‘NCORNSP-032SCRHI’UNDER PATENTJanuary 24, 2044
- LA18-100PP36736Sweetpotato plant named ‘LA18-100’UNDER PATENTMay 8, 2044
- NCORNSP-033SCMPPP36978Sweetpotato plant named ‘NCORNSP-033SCMP’UNDER PATENTMarch 28, 2045
- NCORNSP-034SCVPGPP37109Sweetpotato plant named ‘NCORNSP-034SCVPG’UNDER PATENTMarch 28, 2045
Already in the public domain — 15 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.
- Sweet Caroline Sweetheart RedPP19013Ornamental sweetpotato plant named ‘Sweet Caroline Sweetheart Red’PUBLIC DOMAINJuly 10, 2026
- IP059PP18301Ipomoea plant named ‘IP059’PUBLIC DOMAINMay 22, 2026
- Emerald SplashPP18307Ipomoea plant named ‘Emerald Splash’PUBLIC DOMAINMay 22, 2026
- CovingtonPP18516Sweetpotato plant named ‘Covington’PUBLIC DOMAINMay 9, 2026
- Sweet Caroline Sweetheart Light GreenPP18572Ornamental sweetpotato plant named ‘Sweet Caroline Sweetheart Light Green’PUBLIC DOMAINMarch 31, 2026
- Sweet Caroline Sweetheart PurplePP18573Ornamental sweetpotato plant named ‘Sweet Caroline Sweetheart Purple’PUBLIC DOMAINMarch 31, 2026
- Sweet Caroline Bewitched PurplePP18574Ornamental sweetpotato plant named ‘Sweet Caroline Bewitched Purple’PUBLIC DOMAINMarch 31, 2026
- Sweet Caroline Green YellowPP18673Ornamental sweetpotato plant named ‘Sweet Caroline Green Yellow’PUBLIC DOMAINMarch 31, 2026
- Stokes purplePP17976Sweetpotato plant named ‘Stokes purple’PUBLIC DOMAINDecember 17, 2025
- Sweet Caroline RedPP17483Ornamental sweetpotato plant named ‘Sweet Caroline Red’PUBLIC DOMAINDecember 28, 2024
- Sweet Caroline BronzePP15437Ornamental sweetpotato plant named ‘Sweet Caroline Bronze’PUBLIC DOMAINApril 29, 2022
- Sweet Caroline PurplePP14912Ornamental sweetpotato plant named ‘Sweet Caroline Purple’PUBLIC DOMAINApril 2, 2022
- Sweet Caroline Light GreenPP15028Ornamental sweetpotato plant named ‘Sweet Caroline Light Green’PUBLIC DOMAINApril 2, 2022
- Sweet Caroline GreenPP15056Ornamental sweetpotato plant named ‘Sweet Caroline Green’PUBLIC DOMAINApril 2, 2022
- L96-117PP15038Sweetpotato plant named ‘L96-117’PUBLIC DOMAINMarch 5, 2022
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.