Prosecution Insights
Last updated: October 25, 2026

Jack Chiang, USPTO Patent Examiner

Listed by the USPTO as CHIANG, JACK

Tech Center 2800 • Art Units: 2818 2825 2851

This examiner grants 51% of resolved cases

Analysis

Jack Chiang is an examiner in Tech Center 2800 and Art Unit 2818, with 67 resolved cases. The allowance rate pct is 50.7%. The interview lift pct is 24.0%, which indicates that interviews are a productive strategy for resolving issues and increasing the probability of allowance. This lift provides a significant boost over the 50.7% baseline success rate.

The median days to allowance is 983. Top companies on this docket include Honor Device Co., Ltd. and Enel X Way S R L, with legal representation often provided by ARENTFOX SCHIFF LLP. Practitioners should consider the 24.0% interview lift as a key tactical option to navigate the 983-day median pendency and improve the 50.7% allowance rate through direct engagement with the examiner.

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

Performance Statistics

50.7%
Allow Rate
-17.3% vs TC avg
70
Total Applications
+24.0%
Interview Lift
983
Avg Prosecution Days
Based on 67 resolved cases, 2023–2026

Rejection Statute Breakdown

8.0%
§101 Eligibility
42.3%
§102 Novelty
25.7%
§103 Obviousness
15.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18025834 COLUMN CHARGING SYSTEM FOR ELECTRIC VEHICLES Final Rejection Enel X Way S.r.l.

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Who Appears Before This Examiner

Top companies before this examiner

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Frequently Asked Questions

What is examiner Jack Chiang's allowance rate?

50.7% of resolved applications examined by Jack Chiang were allowed (67 resolved cases), compared with 85.2% across Art Unit 2818 over the last five years.

Does an interview help with examiner Jack Chiang?

This examiner's interview lift is +24.0 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Jack Chiang take to allow a patent?

Applications allowed by Jack Chiang took 983 days on average from filing to allowance.

Which art unit does examiner Jack Chiang work in?

Jack Chiang examines applications in Art Unit 2818 in Tech Center 2800 (Semiconductors, Circuits & Optics).

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