Prosecution Insights
Last updated: October 02, 2026

Examiner: ZHANG, KELING NMN

Tech Center 1700 • Art Units: 1732 1767 1794

This examiner grants 67% of resolved cases

Analysis

Keling NMN Zhang works in Art Unit 1732 of Tech Center 1700. He has 226 resolved cases and an allowance rate of 66.8 percent. This 66.8 percent rate is a metric for applicants and suggests a path to allowance. The median days to allowance is 1204. This 1204-day figure is a metric for managing prosecution timelines. Practitioners can rely on this duration for successful cases in Tech Center 1700.

The interview lift of 17.6 percent suggests that interviews are a tool for securing an allowance. This 17.6 percent lift should be a part of any prosecution strategy, as it offers an increase in the odds of a grant. With 226 resolved cases, the 66.8 percent allowance rate is a statistic for practitioners. The 17.6 percent lift suggests that the examiner is receptive to verbal arguments. The 1204-day median is a reference point for pendency in Art Unit 1732. The data points to a predictable path for applicants.

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

Performance Statistics

66.8%
Allow Rate
+1.8% vs TC avg
273
Total Applications
+17.6%
Interview Lift
1204
Avg Prosecution Days
Based on 226 resolved cases, 2023–2026

Rejection Statute Breakdown

0.5%
§101 Eligibility
15.3%
§102 Novelty
52.8%
§103 Obviousness
26.2%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18504126 HALIDE PRODUCING METHOD Non-Final OA Panasonic Intellectual Property Management Co., Ltd.
18021765 SUPPORTED CATALYST FOR PRODUCING CARBON NANOTUBES Final Rejection LG CHEM, LTD.
18693911 METHOD TO FABRICATE NOVEL MAGNETIC ORGANIC FRAMEWORK MATERIAL FOR BARIUM COLLECTION FROM PRODUCED WATER Non-Final OA SAUDI ARABIAN OIL COMPANY
17883772 METAL DOUBLE SALT DISPERSION LIQUID, METHOD FOR PRODUCING METAL DOUBLE SALT DISPERSION LIQUID, METAL OXIDE NANOPARTICLE DISPERSION LIQUID, AND METHOD FOR PRODUCING METAL OXIDE NANOPARTICLE DISPERSION LIQUID Final Rejection Murata Manufacturing Co., Ltd.
17978010 Facile Synthesis of Aluminum Salts Using Activated Aluminum Precursor Final Rejection Massachusetts Institute of Technology
18628598 PROCESSES FOR LOW CARBON INTENSITY HYDROGEN PRODUCTION Non-Final OA Chevron U.S.A. Inc.
18467728 METHOD FOR PREPARING COBALT SULFATE SALT Non-Final OA SK INNOVATION CO., LTD.
18281586 EXHAUST GAS PURIFICATION CATALYST COMPOSITION AND EXHAUST GAS PURIFICATION CATALYST Non-Final OA MITSUI MINING & SMELTING CO., LTD.
18353955 EXHAUST GAS PURIFICATION CATALYST Final Rejection CATALER CORPORATION
18281625 MOLYBDENUM COMPOUND AND PRODUCTION METHOD THEREFOR Final Rejection DIC Corporation
18276273 METAL-DOPED MOLYBDENUM SULFIDE POWDER AND PRODUCTION METHOD THEREFOR Final Rejection DIC Corporation
18547782 GYPSUM COMPOSITION FOR MOLD PRODUCTION Final Rejection YOSHINO GYPSUM CO., LTD.
18263661 ACTIVATION OF REDUCED AND PASSIVATED CATALYST Final Rejection Johnson Matthey Davy Technologies Limited
17440471 SELECTIVE REDUCING CATALYST FOR DIESELS AND DIESEL EXHAUST GAS PURIFICATION APPARATUS Final Rejection N.E. CHEMCAT CORPORATION
18360529 THERMAL TREATMENT METHODS FOR POROUS PARTICLES Final Rejection Phenomenex, Inc.

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