Patent application 14004646 (US), filed 2013-10-04
Publication number: US20140017753A1
Title: BIOGAS PRODUCTION
CPC codes: C02F   1/68
C12P   5/023
C02F   1/48
C02F   3/08
C02F   3/28
C02F  11/04
Y02E  50/30
Office action: rejection, dated 2015-10-15
Rejection reasons: obviousness_103
indefiniteness_112
Prior art cited: ref_id: 4981593
ref_type: patent
severity: obviousness
ref_id: EP 2159198
ref_type: patent
severity: obviousness
ref_id: 4735725
ref_type: patent
severity: obviousness
Final disposition: granted (2015-10-15)