Prosecution Insights
Last updated: October 02, 2026

Examiner: CHEN, CHIA-LING

Tech Center 3600 • Art Units: 3645

This examiner grants 51% of resolved cases

Analysis

Chia-Ling Chen is an examiner in Tech Center 3600 and Art Unit 3645 with 39 resolved cases. The allowance rate is 51.3%, showing a balanced outcome for applicants. The median days to allowance is 1515, which is a relatively long period for prosecution. This 1515-day timeline requires patience from those seeking grants in Art Unit 3645. The 51.3% rate suggests that about half of the applications are successful.

The interview lift is 42.0%. This high lift suggests that interviews are a very effective way to improve the 51.3% allowance rate. In Tech Center 3600, the 1515-day median pendency is a significant factor for practitioners to consider. The 39 resolved cases provide a consistent look at the examiner's tendencies. The 42.0% lift indicates that verbal advocacy can substantially change the outcome of a case.

Applicants should use the 42.0% interview lift to their advantage, as it significantly boosts the 51.3% baseline. The 1515-day median to allowance indicates that a long-term commitment is required. Overall, the 39 cases suggest that direct engagement is a key strategy for navigating Art Unit 3645. Practitioners should prioritize interviews to improve the 51.3% probability of success.

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

Performance Statistics

51.3%
Allow Rate
-0.7% vs TC avg
59
Total Applications
+42.0%
Interview Lift
1515
Avg Prosecution Days
Based on 39 resolved cases, 2023–2026

Rejection Statute Breakdown

1.3%
§101 Eligibility
12.7%
§102 Novelty
66.7%
§103 Obviousness
15.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17879911 DISTANCE MEASURING APPARATUS USING SENSOR COVER Final Rejection SAMSUNG ELECTRONICS CO., LTD.
18268544 OPTICAL DEVICE AND METHOD FOR CONTROLLING OPTICAL DEVICE Final Rejection NEC Corporation
18170361 SIGNAL PROCESSING DEVICE, LIGHT DETECTOR, AND DISTANCE MEASURING DEVICE Final Rejection Kabushiki Kaisha Toshiba
17770143 LIDAR SENSOR COMPRISING A VIEWING WINDOW AND A CLEANING UNIT, AND ASSOCIATED SENSOR ASSEMBLY Non-Final OA Robert Bosch GmbH
18842415 TIME-OF-FLIGHT SYSTEM AND METHOD Non-Final OA Sony Semiconductor Solutions Corporation
17419432 DISTANCE MEASUREMENT APPARATUS AND DISTANCE MEASUREMENT METHOD Non-Final OA SONY SEMICONDUCTOR SOLUTIONS CORPORATION
18703466 ELECTROMAGNETIC WAVE RADIATION DEVICE, RANGING DEVICE, AND MOBILE OBJECT Non-Final OA KYOCERA Corporation
17788454 A SENSING SYSTEM Non-Final OA ams International AG
17779964 DISTANCE MEASURING CAMERA APPARATUS Final Rejection LG INNOTEK CO., LTD.
18990696 RANGING WITH INTEGRATED OPTICAL PARAMETRIC OSCILLATORS Non-Final OA California Institute of Technology
17934082 RANGEFINDER Non-Final OA DENSO CORPORATION
17948290 DISTANCE MEASUREMENT DEVICE, AND MOUNTING ORIENTATION SENSING METHOD AND MOUNTING ORIENTATION SENSING PROGRAM FOR SAME Final Rejection OMRON CORPORATION
18139915 OPTO-MECHANICAL SYSTEM Final Rejection SUTENG INNOVATION TECHNOLOGY CO., LTD.
17823665 TIME-OF-FLIGHT SENSORS, ELECTRONIC DEVICE AND METHODS FOR OPERATING A TIME-OF-FLIGHT SENSOR Final Rejection IFM ELECTRONIC GMBH

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