Prosecution Insights
Last updated: October 27, 2026

Christine Nmn Zhao, USPTO Patent Examiner

Listed by the USPTO as ZHAO, CHRISTINE NMN

Tech Center 2800 • Art Units: 2673 2677 2872

This examiner grants 69% of resolved cases

Analysis

ZHAO, CHRISTINE NMN has resolved 29 cases in Tech Center 2800 and Art Unit 2673. The allowance rate is 69.0%, while the interview lift is 42.3%. The median time to allowance is 1176 days. The limited record reports allowances in a majority of resolved cases and a meaningful interview effect, but practitioners should avoid treating the figures as a complete prediction of future examination.

The company portfolio includes Rolls-Royce plc, 10x Genomics Inc., and Tmrw Group Ip. The leading firms are Bryan Cave Leighton Paisner LLP (DC), COZEN O'CONNOR, and JCIPRNET. These names provide useful starting points for identifying relevant applicant and representation experience.

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

Performance Statistics

69.0%
Allow Rate
+1.0% vs TC avg
46
Total Applications
+42.3%
Interview Lift
1176
Avg Prosecution Days
Based on 29 resolved cases, 2023–2026

Rejection Statute Breakdown

11.5%
§101 Eligibility
10.3%
§102 Novelty
61.5%
§103 Obviousness
13.5%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18966953 INSPECTION SYSTEM Non-Final OA ROLLS-ROYCE PLC
18513046 SYSTEMS AND METHODS FOR MACHINE VISION CALIBRATION Final Rejection 10x Genomics, Inc.
18182269 IMAGE CAPTURING SYSTEM AND METHOD Final Rejection TMRW Group IP
18577795 WELDING PHENOMENON BEHAVIOR MEASURING METHOD, MEASURING DEVICE, WELDING SYSTEM, AND PROGRAM Final Rejection Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)

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Frequently Asked Questions

What is examiner Christine Nmn Zhao's allowance rate?

69.0% of resolved applications examined by Christine Nmn Zhao were allowed (29 resolved cases), compared with 63.7% across Art Unit 2673 over the last five years.

Does an interview help with examiner Christine Nmn Zhao?

This examiner's interview lift is +42.3 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Christine Nmn Zhao take to allow a patent?

Applications allowed by Christine Nmn Zhao took 1,176 days on average from filing to allowance.

Which art unit does examiner Christine Nmn Zhao work in?

Christine Nmn Zhao examines applications in Art Unit 2673 in Tech Center 2800 (Semiconductors, Circuits & Optics).

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