Prosecution Insights
Last updated: October 01, 2026

Examiner: CASTRO, PAUL A

Tech Center 3600 • Art Units: 3658 3662

This examiner grants 78% of resolved cases

Analysis

Paul A. Castro is an examiner in Tech Center 3600 and Art Unit 3658. He has resolved 280 cases with an allowance rate of 78.2 percent. This high rate suggests a favorable environment for applicants seeking patent protection. The 280 resolved cases provide a dataset to understand the examiner's approach to patent examination.

The interview lift for this examiner is 22.2 percent. This provides a boost to the 78.2 percent baseline allowance rate. Practitioners should consider using interviews to resolve any remaining issues and ensure a grant. The 22.2 percent lift demonstrates that direct communication with the examiner is a statistically effective way to improve the chances of a successful outcome.

The median days to allowance is 1164. This timeline is a useful metric for applicants to gauge the expected duration of their prosecution. The 1164-day figure, when paired with the 78.2 percent allowance rate, indicates a high likelihood of a successful outcome. Practitioners can use this 1164-day benchmark to plan their strategy and manage client expectations effectively.

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

Performance Statistics

78.2%
Allow Rate
+26.2% vs TC avg
297
Total Applications
+22.2%
Interview Lift
1164
Avg Prosecution Days
Based on 280 resolved cases, 2023–2026

Rejection Statute Breakdown

13.5%
§101 Eligibility
10.6%
§102 Novelty
47.5%
§103 Obviousness
25.9%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18275942 IMPROVEMENT ITEM DETECTION APPARATUS, IMPROVEMENT ITEM DETECTION METHOD, AND NON-TRANSITORY STORAGE MEDIUM Final Rejection NEC Corporation
17850492 AUTONOMOUS VEHICLE, CONTROL SYSTEM FOR REMOTELY CONTROLLING THE SAME, AND METHOD THEREOF Final Rejection Kia Corporation
17841260 ELECTRIC VEHICLE CHARGING MODE RECOMMENDATION APPARATUS AND METHOD USING VEHICLE DRIVING DATA Final Rejection Kia Corporation
18806833 Method and Device for Performing a Driving Maneuver Non-Final OA Bayerische Motoren Werke Aktiengesellschaft
18064612 Methods and Systems for Providing Remote Assistance to an Autonomous Vehicle Final Rejection Waymo LLC

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