(19)
(11) EP 4 770 964 A1

(12)

(43) Date of publication:
08.07.2026 Bulletin 2026/28

(21) Application number: 24858970.7

(22) Date of filing: 29.08.2024
(51) International Patent Classification (IPC): 
C02F 11/04(2006.01)
B09B 3/00(2022.01)
B09B 3/70(2022.01)
 C02F 3/28(2023.01)
B09B 3/60(2022.01)
(52) Cooperative Patent Classification (CPC):
Y02E 50/30; C02F 11/04; C02F 2303/26; C02F 2209/06; C02F 2209/03; C02F 2209/38; C02F 2209/02; C02F 2209/005; C02F 2305/08; B09B 3/65; C12P 5/023; C12M 21/04
(86) International application number:
PCT/IN2024/051578
(87) International publication number:
WO 2025/046627 (06.03.2025 Gazette 2025/10)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA
Designated Validation States:
GE KH MA MD TN

(30) Priority: 29.08.2023 IN 202311058031

(71) Applicants:
  • Council of Scientific & Industrial Research
    New Delhi 110001 (IN)
  • Gail (India) Limited
    New Delhi 110066 (IN)

(72) Inventors:
  • RAO, Anupoju Gangagni
    Telangana, India Hyderabad 500007 (IN)
  • SAMEENA, Begum
    Telangana, India Hyderabad 500007 (IN)
  • SUDHARSHAN, Juntupally
    Telangana, India Hyderabad 500007 (IN)
  • VIJAYALAKSHMI, Arelli
    Telangana, India Hyderabad 500007 (IN)
  • KUMAR, Mamindlapelli Naveen
    Telangana, India Hyderabad 500007 (IN)
  • KUMAR, Sanjeev
    Uttar Pradesh, India Noida 201301 (IN)
  • MAURYA, Lalit
    Uttar Pradesh, India Noida 201301 (IN)
  • SINHA, Pankaj
    Uttar Pradesh, India, Noida 201301 (IN)

(74) Representative: Frei Patent Attorneys 
Frei Patentanwaltsbüro AG Hagenholzstrasse 85
8050 Zürich
8050 Zürich (CH)

   


(54) A BI-PHASIC SOLID-STATE ANAEROBIC DIGESTER SYSTEM FOR THE GENERATION OF BIOGAS WITH METHANE (BI-ADS>90%CH4)