WO2026088052 - PROCESS FOR THE PURIFICATION OF CANNABIDIOL FROM HERBAL MATERIAL
National phase entry is expected:
Publication Number
WO/2026/088052
Publication Date
30.04.2026
International Application No.
PCT/IB2025/060679
International Filing Date
20.10.2025
Title **
[English]
PROCESS FOR THE PURIFICATION OF CANNABIDIOL FROM HERBAL MATERIAL
[French]
PROCÉDÉ DE PURIFICATION DE CANNABIDIOL À PARTIR D'UN MATÉRIAU À BASE D'HERBES
Applicants **
A2W PHARMA LIMITED
Inventors
GURRADO, Domenico
HU, Fayuan
Priority Data
18/927,554
25.10.2024
US
Application details
| Total Number of Claims/PCT | * |
| Number of Independent Claims | * |
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| Number of Multi-Dependent Claims | * |
| Number of Drawings | * |
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| Pages of Specification | * |
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International Searching Authority |
EPO
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| Recordal of a Change of the Applicant's Name/Address |
Change of Applicant's Name and Address
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| Type of Assignment |
The Standard Agent's Assignment
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| Applicant's Legal Status |
Legal Entity
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| * | |
| * | |
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| Entry into National Phase under |
Chapter I
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| Patent Delivery |
Send the Letters Patent by Courier
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| Translation |
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* The data is based on automatic recognition. Please verify and amend if necessary.
** IP-Coster compiles data from publicly available sources. If this data includes your personal information, you can contact us to request its removal.
Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing, Examination, Granting | 2026 | |
| EPO | Filing, Examination, Granting | 8107 | |
| Japan | Filing, Examination, Granting | 2154 | |
| South Korea | Filing, Examination, Granting | 2066 | |
| USA | Filing, Examination, Granting | 5940 |
Total:
20,293
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Abstract[English]
The present invention relates to a process for purifying cannabinoids, specifically cannabidiol, in a substantially pure form from herbal material. This process involves a sequence of purification steps including winterization, co-crystallization, dissociation, decarboxylation, and crystallization. Cannabidiol is purified from an extract of herbal material containing approximately 50-70% cannabidiolic acid (CBDA) and 10-20% cannabidiol (CBD), along with other cannabinoids. The substantially pure form of cannabidiol can be used in medicaments for treating various diseases or conditions. The invention also relates to co-crystals of L-proline and cannabidiolic acid and their use in obtaining substantially pure cannabidiol free from tetrahydrocannabinol (THC).[French]
La présente invention concerne un procédé de purification de cannabinoïdes, en particulier de cannabidiol, sous une forme sensiblement pure à partir d'un matériau à base d'herbes. Ce procédé implique une séquence d'étapes de purification comprenant la frigélisation, la co-cristallisation, la dissociation, la décarboxylation et la cristallisation. Le cannabidiol est purifié à partir d'un extrait de matière végétale contenant environ 50 à 70% d'acide cannabidiolique (CBDA) et 10 à 20% de cannabidiol (CBD), conjointement avec d'autres cannabinoïdes. La forme sensiblement pure de cannabidiol peut être utilisée dans des médicaments pour le traitement de diverses maladies ou affections. L'invention concerne également des co-cristaux de L-proline et d'acide cannabidiolique et leur utilisation dans l'obtention de cannabidiol sensiblement pur exempt de tétrahydrocannabinol (THC).