Prosecution Insights
Last updated: October 02, 2026

Examiner: LIU, CHRIS Q

Tech Center 3700 • Art Units: 2875 3742 3761

This examiner grants 69% of resolved cases

Analysis

Chris Q. Liu serves in Tech Center 3700 and Art Unit 2875. The examiner has 402 resolved cases. The allowance rate is 69.4 percent. This rate indicates a generally favorable environment for applicants, with over two-thirds of cases resulting in a grant. The 402 resolved cases offer a reliable statistical basis for evaluating the examiner's performance.

The median days to allowance is 1214. This is the typical timeframe for the prosecution process to reach a successful outcome. The interview lift is 37.1 percent. This figure shows a significant increase in the probability of allowance when an interview is conducted. When compared to the 69.4 percent allowance rate, the 37.1 percent lift suggests that direct communication is a highly effective way to resolve issues.

Practitioners in Art Unit 2875 should account for the 1214 median days to allowance in their planning. The 402 resolved cases reflect a consistent history of examination. The 37.1 percent interview lift is a powerful tool for cases that encounter hurdles. Overall, the 69.4 percent allowance rate points to a good chance of success, especially when combined with proactive oral advocacy.

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

Performance Statistics

69.4%
Allow Rate
-0.6% vs TC avg
423
Total Applications
+37.1%
Interview Lift
1214
Avg Prosecution Days
Based on 402 resolved cases, 2023–2026

Rejection Statute Breakdown

0.1%
§101 Eligibility
25.1%
§102 Novelty
38.5%
§103 Obviousness
34.0%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18525602 COOKING APPLIANCE Non-Final OA LG ELECTRONICS INC.
18229413 COOKING APPLIANCE Final Rejection LG ELECTRONICS INC.
18215084 INDUCTION HEATING APPARATUS AND CONTROL METHOD OF THE SAME Non-Final OA Samsung Electronics Co., Ltd.
18535557 PROCESS FOR LASER MARKING A MEASURING CUP Non-Final OA The Procter & Gamble Company
18198961 PIPE FOR HEATING A CRYOGENIC LIQUEFIED GAS AND METHOD FOR PRODUCING THE SAME Non-Final OA Airbus Operations GmbH
18552232 HEATER ASSEMBLY HAVING A SEALED AIRFLOW PATHWAY Final Rejection Philip Morris Products S.A.
18071280 IDENTIFICATION MARK-BEARING GLASS PLATE AND METHOD OF MANUFACTURING IDENTIFICATION MARK-BEARING GLASS PLATE Non-Final OA AGC Inc.
18803336 Systems and Methods for Monitoring and/or Controlling Wobble-Processing Using Inline Coherent Imaging (ICI) Non-Final OA IPG PHOTONICS CORPORATION
18029423 BEAM SHAPING SYSTEM IN THE PROCESS OF LASER WELDING Non-Final OA IPG PHOTONICS CORPORATION
17677446 SURFACE TREATMENT METHOD AND SURFACE TREATMENT SYSTEM Non-Final OA SINTOKOGIO, LTD.
17738513 WELD REPAIR SYSTEM Final Rejection Raytheon Technologies Corporation
17401886 FORMING COOLING APERTURE(S) IN A TURBINE ENGINE COMPONENT Final Rejection Raytheon Technologies Corporation
18033015 Electric Grill Non-Final OA Active Food Systems Limited

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