Prosecution Insights
Last updated: October 02, 2026

Examiner: SONG, ZHENG B

Tech Center 2800 • Art Units: 2875 2885 2897

This examiner grants 70% of resolved cases

Analysis

Zheng B Song has managed 780 resolved cases in Art Unit 2875. The examiner has an allowance rate of 70.0 percent. Applicants typically see a median of 788 days to allowance. This 788-day timeline is a primary metric for practitioners to consider when filing in Tech Center 2800.

An interview lift of 15.1 percent indicates that verbal communication is a productive strategy for advancing prosecution. This 15.1 percent lift can be applied to the 70.0 percent baseline allowance rate to improve the probability of a successful outcome. The data suggests that the examiner is receptive to the points raised during these sessions.

With 780 cases resolved, the statistical profile is based on a significant volume of work. Practitioners can use the 70.0 percent allowance rate and the 788-day median to set realistic goals for their clients. The 15.1 percent interview lift remains a tool for navigating the specific requirements of Art Unit 2875.

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

Performance Statistics

70.1%
Allow Rate
+2.1% vs TC avg
807
Total Applications
+15.1%
Interview Lift
787
Avg Prosecution Days
Based on 782 resolved cases, 2023–2026

Rejection Statute Breakdown

0.1%
§101 Eligibility
18.4%
§102 Novelty
61.6%
§103 Obviousness
17.0%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18924031 REFLECTIVE MEMBER, PLANAR LIGHT SOURCE, AND LIQUID CRYSTAL DISPLAY DEVICE Final Rejection NICHIA CORPORATION
18726858 STRUCTURES FOR LIGHT-EMITTING DIODE PACKAGES WITH MULTIPLE LIGHT-EMITTING DIODE CHIPS Non-Final OA CreeLED, Inc.
18974943 LAMP FOR DISPLAYING MULTI-COLOR LIGHTING EFFECTS Non-Final OA Razer (ASIA-PACIFIC) PTE LTD.
19141095 OPTICAL ILLUMINATION ASSEMBLY, LIGHTING DEVICE AND MOTOR VEHICLE Non-Final OA VALEO VISION
19127538 LIGHTING DEVICE Non-Final OA VALEO VISION
19137881 LIGHTING MODULE WITH TOP CONTACT AND SURFACE MOUNT LEDS Non-Final OA Lumileds LLC

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