Prosecution Insights
Last updated: October 02, 2026

Examiner: SHI, TINGCHEN

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

This examiner grants 70% of resolved cases

Analysis

Tingchen Shi, in Tech Center 1700 and Art Unit 1633, has 145 resolved cases with an allowance rate pct of 69.7. The median days to allowance is 1207. This provides a benchmark for both the likelihood of success and the expected duration of prosecution. These metrics are based on the 145 resolved cases currently associated with this examiner.

The interview lift pct is 24.5, which is a significant increase. This suggests that the 69.7 allowance rate pct can be notably improved by conducting an interview. For the 145 resolved cases, the data highlights the benefit of direct communication with the examiner. The 1207 median days to allowance is an important figure for setting realistic expectations for the timing of an allowance. By utilizing the 24.5 interview lift pct, practitioners can work to overcome obstacles and secure a patent more efficiently. The 69.7 allowance rate pct indicates a generally positive environment for applications in Tech Center 1700. These data points together offer a clear strategic path for applicants.

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

Performance Statistics

69.7%
Allow Rate
+4.7% vs TC avg
191
Total Applications
+24.5%
Interview Lift
1207
Avg Prosecution Days
Based on 145 resolved cases, 2023–2026

Rejection Statute Breakdown

0.6%
§101 Eligibility
28.5%
§102 Novelty
48.5%
§103 Obviousness
20.8%
§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
18484097 COMPOSITION AND METHOD FOR MEASURING CALCIUM HARDNESS IN PROCESS WATER Non-Final OA Ecolab USA Inc.
17402249 MEDICAL APPARATUS AND METHOD FOR COLLECTION AND PREPARATION OF BIOLOGICAL SAMPLES Final Rejection THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK
17721618 ELECTRICAL DISSOCIATION OF TISSUE SAMPLES INTO SINGLE CELLS AND/OR SMALLER GROUPS OF CELLS Non-Final OA BROWN UNIVERSITY
17787437 CONTRACTILE TISSUE-BASED ANALYSIS DEVICE Final Rejection Danmarks Tekniske Universitet
18505624 SPATIALLY DISTINGUISHED, MULTIPLEX NUCLEIC ACID ANALYSIS OF BIOLOGICAL SPECIMENS Final Rejection Illumina, Inc.
18215794 IN-SITU FLUIDIC INSPECTION Final Rejection ILLUMINA, INC.
17919341 FLUID LAYING DEVICE, FLUID LAYING METHOD, FLUID LAYING SYSTEM, COMPOSITE DEVICE, AND FLUID PASSAGE DEVICE Final Rejection MGI Tech Co., Ltd.

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