Prosecution Insights
Last updated: October 27, 2026

Tingchen Shi, USPTO Patent Examiner

Listed by the USPTO as SHI, TINGCHEN

Tech Center 1700 • Art Units: 1633 1651 1681 1758 1773 1796 1798

This examiner grants 69% of resolved cases

Performance Statistics

69.4%
Allow Rate
+4.4% vs TC avg
192
Total Applications
+22.7%
Interview Lift
1207
Avg Prosecution Days
Based on 147 resolved cases, 2023–2026

Rejection Statute Breakdown

0.8%
§101 Eligibility
28.3%
§102 Novelty
48.4%
§103 Obviousness
20.9%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17693836 COMPOUND INTRODUCTION APPARATUS AND COMPOUND INTRODUCTION METHOD Final Rejection CANON KABUSHIKI KAISHA
18485099 ONLINE AND OFFLINE MEASUREMENTS OF GLYCOLS STRENGTHS WITH ANALYSIS PROCEDURE Non-Final OA SAUDI ARABIAN OIL COMPANY
18290485 A PLATFORM FOR THE FAST, LABEL-FREE, AUTOMATED EVALUATION OF STERILITY AND BIOBURDEN Non-Final OA The Texas A&M University System
18215794 IN-SITU FLUIDIC INSPECTION Final Rejection ILLUMINA, INC.

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Frequently Asked Questions

What is examiner Tingchen Shi's allowance rate?

69.4% of resolved applications examined by Tingchen Shi were allowed (147 resolved cases), compared with 34.8% across Art Unit 1633 over the last five years.

Does an interview help with examiner Tingchen Shi?

This examiner's interview lift is +22.7 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Tingchen Shi take to allow a patent?

Applications allowed by Tingchen Shi took 1,207 days on average from filing to allowance.

Which art unit does examiner Tingchen Shi work in?

Tingchen Shi examines applications in Art Unit 1633 in Tech Center 1700 (Chemistry & Materials).

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