Prosecution Insights
Last updated: October 26, 2026

Tracy C Chan, USPTO Patent Examiner

Listed by the USPTO as CHAN, TRACY C

Tech Center 2100 • Art Units: 2137 2138

This examiner grants 79% of resolved cases

Performance Statistics

79.4%
Allow Rate
+24.4% vs TC avg
399
Total Applications
-0.5%
Interview Lift
920
Avg Prosecution Days
Based on 369 resolved cases, 2023–2026

Rejection Statute Breakdown

5.5%
§101 Eligibility
8.0%
§102 Novelty
58.8%
§103 Obviousness
14.9%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18888010 INTELLIGENT SCHEDULING OF OPERATIONS IN A STORAGE SYSTEM Final Rejection PURE STORAGE, INC.
18500978 PER-PROCESS RE-CONFIGURABLE CACHES Final Rejection Micron Technology, Inc.
18211500 GENERATING AND USING A TRANSLATION TABLE THAT ASSOCIATES ATTRIBUTE NAME STRINGS WITH INTEGER VALUES Non-Final OA International Business Machines Corporation
19340196 MEMORY REGISTRATION FOR REMOTE DIRECT MEMORY ACCESS Non-Final OA Hewlett Packard Enterprise Development LP
19074547 STORAGE SYSTEM AND VOLUME PATH SWITCHING METHOD FOR STORAGE SYSTEM Non-Final OA Hitachi Vantara, Ltd.
17559870 CACHE EVICTIONS MANAGEMENT IN A TWO LEVEL MEMORY CONTROLLER MODE Final Rejection SK Hynix NAND Product Solutions Corp. (dba Solidigm)

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Frequently Asked Questions

What is examiner Tracy C Chan's allowance rate?

79.4% of resolved applications examined by Tracy C Chan were allowed (369 resolved cases), compared with 75.9% across Art Unit 2137 over the last five years.

Does an interview help with examiner Tracy C Chan?

This examiner's interview lift is -0.5 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 C Chan take to allow a patent?

Applications allowed by Tracy C Chan took 920 days on average from filing to allowance.

Which art unit does examiner Tracy C Chan work in?

Tracy C Chan examines applications in Art Unit 2137 in Tech Center 2100 (Computing & Software).

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