Prosecution Insights
Last updated: October 26, 2026

Linh Black, USPTO Patent Examiner

Listed by the USPTO as BLACK, LINH

Tech Center 2100 • Art Units: 2159 2163 2169

This examiner grants 50% of resolved cases

Analysis

BLACK, LINH has 450 resolved cases in technology center 2100 and art unit 2159. The allowance rate is 50.2%, and the median time to allowance is 1784 days.

Interview lift is 10.2%, indicating a positive association with allowance. The listed companies include ORACLE INTERNATIONAL Corporation, Open Text Corporation, and Capital One Services LLC. The listed firms are BakerHostetler, Cantor Colburn LLP, and Davis Wright Tremaine LLP - Seattle. The recorded duration suggests that practitioners should plan for sustained prosecution activity.

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

Performance Statistics

50.2%
Allow Rate
-4.8% vs TC avg
482
Total Applications
+10.2%
Interview Lift
1784
Avg Prosecution Days
Based on 450 resolved cases, 2023–2026

Rejection Statute Breakdown

12.0%
§101 Eligibility
16.6%
§102 Novelty
66.9%
§103 Obviousness
2.8%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18599636 COMMUNICATING VIA A COMMUNICATION CHANNEL IDENTIFIED FROM AN EXTRACT, TRANSFORM, AND LOAD PROCESS Non-Final OA Capital One Services, LLC
18622281 Unbounded Regular Path Queries In SQL Non-Final OA Oracle International Corporation
18444454 TUNING-FREE UNSUPERVISED ANOMALY DETECTION BASED ON DISTANCE TO NEAREST NORMAL POINT Final Rejection Oracle International Corporation
16135405 SYSTEMS, METHODS AND DATA STRUCTURES FOR WORKFLOW BLOCKCHAINS Final Rejection Toyota Motor Engineering & Manufacturing North America, Inc.
16815581 GUIDED QUERY RECOMMENDATIONS Non-Final OA Microsoft Technology Licensing, LLC
17809624 LONG TEXT CLUSTERING METHOD BASED ON INTRODUCING EXTERNAL LABEL INFORMATION Non-Final OA International Business Machines Corporation

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Frequently Asked Questions

What is examiner Linh Black's allowance rate?

50.2% of resolved applications examined by Linh Black were allowed (450 resolved cases), compared with 57.3% across Art Unit 2159 over the last five years.

Does an interview help with examiner Linh Black?

This examiner's interview lift is +10.2 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Linh Black take to allow a patent?

Applications allowed by Linh Black took 1,784 days on average from filing to allowance.

Which art unit does examiner Linh Black work in?

Linh Black examines applications in Art Unit 2159 in Tech Center 2100 (Computing & Software).

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