Prosecution Insights
Last updated: October 26, 2026

Cheyne D Ly, USPTO Patent Examiner

Listed by the USPTO as LY, CHEYNE D

Tech Center 2100 • Art Units: 2152 2154 2161 2163 2168

This examiner grants 79% of resolved cases

Analysis

LY, CHEYNE D works in tech center 2100 and art unit 2152. The record contains 807 resolved cases, a 78.8% allowance rate, and a 1370-day median time to allowance. Interviews are associated with an 11.3% lift in the allowance outcome.

The substantial case record shows allowance in a large share of matters, but the median timeline is extended. The interview association is positive but limited, suggesting that counsel should address substantive claim issues directly while using interviews selectively. The principal companies are Capital One Services LLC, Google LLC, and ABB Schweiz AG.

The principal firms are Astute IP Law Group, FINNEGAN, HENDERSON, FARABOW, GARRETT & DUNNER, and Fitch, Even, Tabin & Flannery, LLP. They represent the main recurring counsel relationships.

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

Performance Statistics

78.8%
Allow Rate
+23.8% vs TC avg
832
Total Applications
+11.3%
Interview Lift
1370
Avg Prosecution Days
Based on 807 resolved cases, 2023–2026

Rejection Statute Breakdown

14.7%
§101 Eligibility
17.5%
§102 Novelty
47.9%
§103 Obviousness
14.3%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19025706 ASSISTIVE BROWSING USING CONTEXT Final Rejection GOOGLE LLC
18830787 Device and Method for Formalizing an Uncontrolled Data Format Input Final Rejection ABB Schweiz AG
19083931 ONLINE LEARNING PLATFORMS WITH ENHANCED SEARCH ASSIGNMENTS Final Rejection Microsoft Technology Licensing, LLC
19248620 APPARATUSES, METHODS, AND COMPUTER PROGRAM PRODUCTS FOR GENERATING AN AUTOMATED RESOLUTION ACTION USING A KNOWLEDGE BASE SYSTEM AND A TRAINED MACHINE LEARNING MODEL Non-Final OA Atlassian US, Inc.

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Frequently Asked Questions

What is examiner Cheyne D Ly's allowance rate?

78.8% of resolved applications examined by Cheyne D Ly were allowed (807 resolved cases), compared with 64.7% across Art Unit 2152 over the last five years.

Does an interview help with examiner Cheyne D Ly?

This examiner's interview lift is +11.3 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Cheyne D Ly take to allow a patent?

Applications allowed by Cheyne D Ly took 1,370 days on average from filing to allowance.

Which art unit does examiner Cheyne D Ly work in?

Cheyne D Ly examines applications in Art Unit 2152 in Tech Center 2100 (Computing & Software).

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