Prosecution Insights
Last updated: October 27, 2026

Tracy Y Li, USPTO Patent Examiner

Listed by the USPTO as LI, TRACY Y

Tech Center 2400 • Art Units: 2485 2487

This examiner grants 81% of resolved cases

Analysis

LI, TRACY Y handles prosecution in USPTO tech center 2400 and art unit 2485. The profile covers 765 resolved cases, with an 80.7% allowance rate and a median of 1025 days to allowance. An interview lift of 16.0% indicates that interviews are associated with a meaningful improvement in outcomes in this dataset.

The listed company portfolio includes Bytedance Inc., Texas Instruments Incorporated, and Sony Group Corporation. Astute IP Law Group, F. CHAU & ASSOCIATES, LLC, and Faegre Drinker NTT are the leading firms shown. Applicants facing this examiner can use the substantial case volume and company mix as practical context when preparing claim amendments, interview agendas, and prosecution expectations.

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

Performance Statistics

80.7%
Allow Rate
+22.7% vs TC avg
793
Total Applications
+16.0%
Interview Lift
1025
Avg Prosecution Days
Based on 765 resolved cases, 2023–2026

Rejection Statute Breakdown

9.5%
§101 Eligibility
11.4%
§102 Novelty
68.5%
§103 Obviousness
6.0%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18849365 IMAGE ENCODING/DECODING METHOD FOR GEOMETRIC PARTITIONED BLOCK, METHOD FOR TRANSMITTING BITSTREAM, AND RECORDING MEDIUM STORING BITSTREAM Final Rejection LG ELECTRONICS INC.
19312364 MEDICAL IMAGE CAPTURING SYSTEM AND IMAGING METHOD Final Rejection Sony Olympus Medical Solutions Inc.
18744323 Transformer Based Neural Network Using Variable Auxiliary Input Non-Final OA HUAWEI TECHNOLOGIES CO., LTD.
18992941 STEREO IMAGE GENERATING APPARATUS, STEREO IMAGE GENERATINGMETHOD, AND PROGRAM Non-Final OA NIPPON TELEGRAPH AND TELEPHONE CORPORATION
19342304 METHOD, APPARATUS, AND MEDIUM FOR VIDEO PROCESSING Non-Final OA Bytedance Inc.
19316980 METHOD, APPARATUS, AND MEDIUM FOR VIDEO PROCESSING Non-Final OA Bytedance Inc.
19303157 METHOD, APPARATUS, AND MEDIUM FOR VIDEO PROCESSING Non-Final OA Bytedance Inc.
18950554 REDUCING BLOCKING ARTIFACTS IN VIDEO CODING Final Rejection Texas Instruments Incorporated
18943341 STORING BLOCK DATA FOR SUBSEQUENT ENCODING OF ANOTHER BLOCK Final Rejection TEXAS INSTRUMENTS INCORPORATED

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Who Appears Before This Examiner

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Frequently Asked Questions

What is examiner Tracy Y Li's allowance rate?

80.7% of resolved applications examined by Tracy Y Li were allowed (765 resolved cases), compared with 74.2% across Art Unit 2485 over the last five years.

Does an interview help with examiner Tracy Y Li?

This examiner's interview lift is +16.0 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Tracy Y Li take to allow a patent?

Applications allowed by Tracy Y Li took 1,025 days on average from filing to allowance.

Which art unit does examiner Tracy Y Li work in?

Tracy Y Li examines applications in Art Unit 2485 in Tech Center 2400 (Networking & Security).

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