Patent application 13398095 (US), filed 2012-02-16
Publication number: US20120211374A1
Title: NOx CONCENTRATION DETECTION APPARATUS AND NOx CONCENTRATION DETECTION METHOD
CPC codes: G01N  27/419
Office action: rejection, dated 2015-10-15
Rejection reasons: anticipation_102
obviousness_103
Prior art cited: ref_id: JP 409297119
ref_type: patent
severity: novelty_destroying
ref_id: 8197652
ref_type: patent
severity: novelty_destroying
ref_id: JP 409297119
ref_type: patent
severity: novelty_destroying
Final disposition: granted (2015-10-15)