HH

Henricus Maria Joseph Holtmaat

AB Ab-Kwekersrechten B.V.: 40 patents #1 of 3Top 35%
NB Nova Perenne Bv: 21 patents #1 of 2Top 50%
📍 Zuidwolde, NL: #1 of 11 inventorsTop 10%
Overall (All Time): #35,525 of 4,157,543Top 1%
63
Patents All Time

Issued Patents All Time

Showing 1–25 of 63 patents

Patent #TitleCo-InventorsDate
PP36982 Delphinium plant named ‘Dellas 812’ 2025-09-23
PP36816 Rudbeckia plant named ‘RUDBSUN303’ 2025-07-08
PP36815 Rudbeckia plant named ‘RUDBDIV658’ 2025-07-08
PP36247 Silene plant named ‘Sil005’ 2024-11-05
PP35263 Heuchera plant named ‘Toncka 377’ 2023-07-11
PP35264 Heuchera plant named ‘Toncka 390’ 2023-07-11
PP35142 Heuchera plant named ‘Toncka 380’ 2023-04-25
PP35117 Heuchera plant named ‘Toncka 306’ 2023-04-18
PP35106 Heuchera plant named ‘Toncka 308’ 2023-04-11
PP34177 Heuchera plant named ‘Rex Black’ 2022-04-26
PP33751 Echinacea plant named ‘PEARL495’ 2021-12-14
PP33692 Echinacea plant named ‘PIN449’ 2021-11-23
PP33691 Echinacea plant named ‘FOUNT546’ 2021-11-23
PP33649 Echinacea plant named ‘CARROT489’ 2021-11-16
PP33619 Echinacea plant named ‘BLU481’ 2021-11-02
PP32962 Rudbeckia plant named ‘RUDTI124’ 2021-04-06
PP32918 Rudbeckia plant named ‘RUDLE169’ 2021-03-23
PP32902 Rudbeckia plant named ‘RUDLO175’ 2021-03-16
PP32569 Rudbeckia plant named ‘RUDBK166’ 2020-12-01
PP32570 Rudbeckia plant named ‘RUDLS291’ 2020-12-01
PP32568 Rudbeckia plant named ‘RUDBR159’ 2020-12-01
PP32571 Rudbeckia plant named ‘RUDBL242’ 2020-12-01
PP32572 Rudbeckia plant named ‘RUDLU203’ 2020-12-01
PP32488 Rudbeckia plant named ‘RUDPA297’ 2020-11-17
PP32453 Rudbeckia plant named ‘RUDFA538’ 2020-11-10