Prosecution Insights
Last updated: October 02, 2026

Examiner: PEARSON, DAVID J

Tech Center 2400 • Art Units: 2137 2400 2407 2431 2437 2438

This examiner grants 78% of resolved cases

Analysis

David J. Pearson is an examiner in Tech Center 2400 and Art Unit 2137. He has 770 resolved cases with an allowance rate of 78.1%. This 78.1% rate reflects the proportion of applications that have successfully reached a grant. The median days to allowance is 1057, providing a specific benchmark for the duration of the prosecution process.

The interview lift is 11.8%. This 11.8% lift indicates the increase in the probability of an allowance when an interview is held. While the 78.1% allowance rate is already favorable, the 11.8% lift provides an additional tactical option for applicants. With 770 resolved cases, the data offers a clear view of the examiner's historical patterns. Practitioners should account for the 1057-day median to allowance when managing their docket. The 78.1% allowance rate and the 11.8% interview lift are important data points for navigating Art Unit 2137. These 770 resolved cases in Tech Center 2400 provide a reliable basis for these performance metrics.

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

Performance Statistics

78.1%
Allow Rate
+20.1% vs TC avg
779
Total Applications
+11.8%
Interview Lift
1057
Avg Prosecution Days
Based on 770 resolved cases, 2023–2026

Rejection Statute Breakdown

13.9%
§101 Eligibility
16.8%
§102 Novelty
45.5%
§103 Obviousness
8.7%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19245801 CONSTRAINING INJECTION OF UNLOCKING TRANSACTION BYTECODE Non-Final OA nChain Licensing AG
19227595 METHOD AND SYSTEM FOR VERIFYING INTEGRITY OF A DIGITAL ASSET USING A DISTRIBUTED HASH TABLE AND A PEER TO-PEER DISTRIBUTED LEDGER Non-Final OA nChain Licensing AG
19092163 DEVICE AND METHOD FOR SUPPORTING REMOTE SERVICE Non-Final OA SAMSUNG ELECTRONICS CO., LTD.
19241224 Consistent Speculation of Pointer Authentication Non-Final OA Apple Inc.
18408185 METHOD AND APPARATUS FOR SHARING KEYS FOR ENCRYPTION AND/OR DECRYPTION Final Rejection Marvell Asia Pte Ltd
18896124 KEY REFRESHMENT WITH SESSION COUNT FOR WIRELESS NETWORK Final Rejection Texas Instruments Incorporated
19083953 INTELLIGENT METHOD FOR LOGGING IN OPERATING SYSTEM AND SYSTEM Non-Final OA REALTEK SEMICONDUCTOR CORP.
18932945 HIERARCHICAL MODELS USING SELF ORGANIZING LEARNING TOPOLOGIES Final Rejection Cisco Technology, Inc.
19093915 USED CACHED SUMMARIES FOR EFFICIENT ACCESS ANALYSIS FOR CLOUD PROVIDER ENTITIES Non-Final OA Rapid7, Inc.
18269361 ATTACK INFORMATION GENERATION APPARATUS, CONTROL METHOD, AND NON-TRANSITORY COMPUTER READABLE MEDIUM Non-Final OA National Institute of Information and Communications Technology

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