Patent application 13339532 (US), filed 2011-12-29
Publication number: US20130173610A1
Title: Extracting Search-Focused Key N-Grams and/or Phrases for Relevance Rankings in Searches
CPC codes: G06F  16/951
Office action: rejection, dated 2015-10-15
Rejection reasons: obviousness_103
Prior art cited: ref_id: 6473754
ref_type: patent
severity: obviousness
ref_id: 20070112764
ref_type: patent
severity: obviousness
ref_id: 20090228468
ref_type: patent
severity: obviousness
Final disposition: rejected (2015-10-15)