Prosecution Insights
Last updated: October 02, 2026

Examiner: SONG, JIANFENG

Tech Center 1600 • Art Units: 1613 1615 1675

This examiner grants 56% of resolved cases

Analysis

Jianfeng Song works in Art Unit 1613 within Tech Center 1600. He has 865 resolved cases with an allowance rate of 56.2%. The median days to allowance is 969, which is a moderate timeframe for this tech center.

The interview lift of 33.2% is substantial. It suggests that an interview can significantly improve the 56.2% baseline allowance rate. For practitioners, the interview is a highly recommended tactic to resolve rejections and move toward an allowance within the 969-day median period. With 865 resolved cases, the data shows a clear benefit to direct communication. Utilizing the 33.2% lift can help overcome technical hurdles that might otherwise stall prosecution. This examiner appears to be receptive to the interview process as a means of reaching a final resolution, making it a key part of any strategy.

Written from this page's own data; every figure is computed from USPTO records and verified before publication.

Performance Statistics

56.3%
Allow Rate
-3.7% vs TC avg
934
Total Applications
+33.2%
Interview Lift
970
Avg Prosecution Days
Based on 867 resolved cases, 2023–2026

Rejection Statute Breakdown

1.0%
§101 Eligibility
10.1%
§102 Novelty
48.3%
§103 Obviousness
17.6%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18800195 LIPID PARTICLE, COMPOSITION CONTAINING LIPID PARTICLE, KIT CONTAINING LIPID PARTICLE, AND ACTIVE AGENT DELIVERY METHOD USING LIPID PARTICLE Non-Final OA KABUSHIKI KAISHA TOSHIBA
18730898 COMPOSITION FOR PREVENTING, AMELIORATING, OR TREATING INFLAMMATORY DISEASES COMPRISING EXTRACELLULAR VESICLES DERIVED FROM ROSEBURIA SPP. OR BIFIDOBACTERIUM SPP. Final Rejection KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
18855905 METHOD FOR PRODUCING EMULSIFIED COMPOSITION Non-Final OA Daicel Corporation
17047522 Methods and Compositions for Hair Growth by Activating Autophagy Non-Final OA The Regents of the University of California
18702183 Phosphate and Arginine Containing Compositions and the Delivery of Such Compositions for Virulence Suppression Non-Final OA Solventum Intellectual Properties Company
18284678 DIALKYLPENTENE ETHER AND DIALKYLPENTADIENE ETHER DERIVATIVES AS FRAGRANCES Final Rejection BASF SE
18487218 INTERACTION BETWEEN ANTIMICROBIAL QUATERNARY COMPOUNDS AND ANIONIC SURFACTANTS Non-Final OA ECOLAB USA INC.
18528620 PERSONAL CARE SPRAY COMPOSITIONS AND METHODS COMPRISING TRANS-1-CHLORO-3,3,3-TRIFLUOROPROPENE Non-Final OA HONEYWELL INTERNATIONAL INC.
18292246 COMPOSITION COMPRISING CYSTEINE, A PARTICULAR FATTY ACID TRIGLYCERIDE AND AN ADDITIONAL REDUCING AGENT Non-Final OA L'OREAL
18543636 COSMETIC EMULSION COMPRISING HYDROPHOBIC POLYMER Final Rejection L'OREAL
18544283 MINERAL SUNSCREEN COMPOSITION COMPRISING HYDROPHOBIC POLYMER Final Rejection L'OREAL
17927488 COSMETIC COMPOSITION COMPRISING AT LEAST 30% BY WEIGHT OF BRANCHED ALKANE AND A COMBINATION OF PARTICULAR SILICONES Final Rejection L'OREAL
17779021 COMPOSITION FOR BRIGHTENING AND/OR WHITENING KERATIN MATERIALS Non-Final OA L'OREAL
18278774 COSMETIC Final Rejection SHIN-ETSU CHEMICAL CO., LTD.
17775726 DEODORANT COMPOSITIONS Final Rejection Conopco, Inc., d/b/a UNILEVER
18716088 ANISAMIDE-CONTAINING LIPIDS AND COMPOSITIONS AND METHODS OF USE THEREOF Final Rejection The Trustees Of The University Of Pennsylvania
19060145 Cosmetic and Personal Care compositions Non-Final OA BOLT THREADS, INC.
17633868 LIQUID DRESSING COMPOSITIONS AND THEIR VETERINARY USES Non-Final OA Cambridge Enterprise Limited
18573452 AQUEOUS MICROCAPSULE DISPERSION Final Rejection KAO CORPORATION
17782550 HAIR COSMETIC COMPOSITION Non-Final OA Kao Corporation
18627146 HYBRID GOLD NANOPARTICLE-LIPID NANOPARTICLES AND METHODS OF USE AND PRODUCTION THEREOF Non-Final OA THE BOARD OF REGENTS OF THE UNIVERSITY OF OKLAHOMA
18551532 HAIR STYLING AND HAIR CARE COMPOSITIONS COMPRISING A LEGUMINOUS-PLANT STARCH Non-Final OA ROQUETTE FRERES
18264325 IMPROVEMENTS IN OR RELATING TO ORGANIC COMPOUNDS Final Rejection Givaudan SA
17837689 BIOCIDAL COMPOSITIONS AND METHODS OF MAKING THE SAME Non-Final OA WIAB WATER INNOVATION AB
18563178 SOLID SHAVING AID COMPOSITION Final Rejection BIC Violex Single Member S.A.
18354345 COMPOSITIONS AND METHODS FOR FILTERING MICROORGANISMS FROM A FLUID Final Rejection Food and Drug Administration
18043868 CHEWABLE FORMULATIONS Final Rejection Elanco Tiergesundheit AG

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