Prosecution Insights
Last updated: October 27, 2026

Nianxiang Zou, USPTO Patent Examiner

Listed by the USPTO as ZOU, NIANXIANG

Tech Center 1600 • Art Units: 1600 1642 1648 1671 1675

This examiner grants 64% of resolved cases

Analysis

ZOU, NIANXIANG works in Tech Center 1600 and Art Unit 1600. The profile reports 781 resolved cases and an allowance rate of 64.0%. The median time to allowance is 994 days, so applicants should incorporate a substantial prosecution interval into filing and portfolio decisions.

The interview lift is 25.0%, indicating a meaningful association with allowance outcomes. An interview may help focus the examiner’s concerns and guide the written response, particularly when technical distinctions require explanation. The represented organizations include Laboratory Corporation of America Holdings, Takeda Pharmaceutical Company Limited, and University of Florida Research Foundation Inc. The listed firms are BOZICEVIC, FIELD & FRANCIS LLP, ArentFox Schiff, LLP & Memorial Sloan-Kettering, and BakerHostetler - Inovio.

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

Performance Statistics

64.0%
Allow Rate
+4.0% vs TC avg
829
Total Applications
+25.0%
Interview Lift
994
Avg Prosecution Days
Based on 781 resolved cases, 2023–2026

Rejection Statute Breakdown

6.8%
§101 Eligibility
15.2%
§102 Novelty
34.3%
§103 Obviousness
26.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17800687 Multilamellar RNA Nanoparticles and Methods of Sensitizing Tumors to Treatment with Immune Checkpoint Inhibitors Non-Final OA UNIVERSITY OF FLORIDA RESEARCH FOUNDATION, INCORPORATED
18847937 METHODS AND COMPOSITIONS FOR PURIFYING ADENO ASSOCIATED VIRUS PARTICLES Non-Final OA MERCK PATENT GMBH
18344952 METHODS FOR DETERMINING SARS-COV-2 ANTIGEN AND ANTI-SARS-COV-2 ANTIBODY IN A SAMPLE Final Rejection Abbott Laboratories
18560515 Coronavirus Constructs and Vaccines Non-Final OA The Regents of the University of California
17862240 Methods for Viral Particle Characterization Using Two-Dimensional Liquid Chromatography-Mass Spectrometry Final Rejection Regeneron Pharmaceuticals, Inc.
18520057 E1E2 HCV VACCINES AND METHODS OF USE Final Rejection The Governors of the University of Alberta
18883669 Compositions For and Methods of Treating Influenza Non-Final OA President and Fellows of Harvard College
18833823 CORONAVIRUS ANTIGEN VARIANTS Non-Final OA PFIZER INC.
18415814 METHOD OF DETECTING SARS-COV IN A SAMPLE Final Rejection Imam Abdulrahman Bin Faisal University
18835922 ZIKA VACCINES AND IMMUNOGENIC COMPOSITIONS, AND METHODS OF USING THE SAME Non-Final OA Takeda Vaccines, Inc.
18030647 METHODS FOR DETERMINING COMPLEMENT-FIXING ANTIBODIES Final Rejection TAKEDA VACCINES, INC.
18229072 SAMPLE PRETREATMENT KIT AND METHOD FOR DETECTING VIRUS INFECTIVITY Final Rejection Delta Electronics Int’l (Singapore) Pte Ltd

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Frequently Asked Questions

What is examiner Nianxiang Zou's allowance rate?

64.0% of resolved applications examined by Nianxiang Zou were allowed (781 resolved cases), compared with 37.3% across Art Unit 1600 over the last five years.

Does an interview help with examiner Nianxiang Zou?

This examiner's interview lift is +25.0 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Nianxiang Zou take to allow a patent?

Applications allowed by Nianxiang Zou took 994 days on average from filing to allowance.

Which art unit does examiner Nianxiang Zou work in?

Nianxiang Zou examines applications in Art Unit 1600 in Tech Center 1600 (Biotechnology & Pharmaceuticals).

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