Prosecution Insights
Last updated: October 02, 2026

Examiner: KAO, CHIH CHENG G

Tech Center 2800 • Art Units: 2882 2884

This examiner grants 83% of resolved cases

Analysis

Chih Cheng G Kao, based in Tech Center 2800 and Art Unit 2882, has overseen 1200 resolved cases. The data reveals an allowance rate pct of 82.6 and a median days to allowance of 916. These 1200 resolved cases establish a pattern of outcomes for applications in Art Unit 2882. The 82.6 percent allowance rate indicates the frequency of successful grants.

The interview lift pct of 9.6 shows that personal engagement provides an increase in the probability of allowance. This 9.6 percent lift suggests that interviews can be a tool for resolving specific issues. Practitioners can use the 916 days to allowance to plan for the duration of the prosecution. The 82.6 percent allowance rate and 916 days to allowance are the key indicators for this examiner. The 1200 resolved cases provide the basis for these observations.

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

Performance Statistics

82.6%
Allow Rate
+14.6% vs TC avg
1,228
Total Applications
+9.5%
Interview Lift
916
Avg Prosecution Days
Based on 1204 resolved cases, 2023–2026

Rejection Statute Breakdown

3.7%
§101 Eligibility
21.3%
§102 Novelty
46.6%
§103 Obviousness
20.6%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19048748 ANALYSIS METHOD Non-Final OA CANON KABUSHIKI KAISHA
18024865 MONITORING OF X-RAY TUBE Final Rejection KONINKLIJKE PHILIPS N.V.
18948019 METHOD FOR SCANNING A COMPONENT Non-Final OA ROLLS-ROYCE plc
18791884 X-RAY HIGH-VOLTAGE GENERATOR WITH AN OSCILLATING HEAT PIPE Final Rejection Siemens Healthineers AG
18936386 CONFIGURABLE PHANTOM FOR END-TO-END VERIFICATION OF ADAPTIVE RADIOTHERAPY SYSTEMS Non-Final OA VANDERBILT UNIVERSITY
18902729 TEMPERATURE MONITORING Non-Final OA Lam Research Corporation
19183008 BREAST COMPRESSION PADDLE WITH ACCESS CORNERS Non-Final OA Hologic, Inc.
18928484 SYSTEMS AND METHODS FOR GUIDING A PATIENT DURING IMAGING PROCEDURES Non-Final OA Hologic, Inc.
18770739 OPTICAL GAS SENSOR DEVICE AND MANUFACTURING METHOD OF OPTICAL GAS SENSOR DEVICE Non-Final OA MITSUMI ELECTRIC CO., LTD.
18544290 FIELD EMITTER APPARATUSES AND X-RAY SYSTEMS Non-Final OA Varex Imaging Corporation
18946979 RADIATION THERAPY SYSTEM WITH O-RING LINAC AND MOVABLE COLLISION SHIELD Non-Final OA VARIAN MEDICAL SYSTEMS, INC.
18353260 RADIATION TREATMENT PLANNING AND DELIVERY FOR MOVING TARGETS IN THE HEART Non-Final OA VARIAN MEDICAL SYSTEMS, INC.

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