Prosecution Insights
Last updated: October 02, 2026

Examiner: CASTILHO, EDUARDO D

Tech Center 3600 • Art Units: 3685 3698

This examiner grants 49% of resolved cases

Analysis

Eduardo D. Castilho is an examiner in Tech Center 3600 and Art Unit 3685. He has resolved 313 cases with an allowance rate of 48.6 percent. This rate indicates a balanced prosecution environment where a grant is achieved in a portion of the cases. The 313 resolved cases offer a dataset for understanding the examiner's approach.

The interview lift is 18.8 percent, which is an increase over the 48.6 percent baseline. This suggests that interviews are effective at moving cases toward allowance. Practitioners should consider direct communication to leverage this 18.8 percent lift. The data implies that verbal discussion is a successful method for resolving issues that might otherwise lead to a rejection.

The median days to allowance is 1429. This figure represents the timeframe for reaching a positive conclusion in prosecution. While the 48.6 percent allowance rate is balanced, the 1429-day duration indicates that the process requires persistence. The 18.8 percent lift is a useful tool for applicants to use during this 1429-day period to improve their chances of success.

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

Performance Statistics

48.6%
Allow Rate
-3.4% vs TC avg
336
Total Applications
+18.8%
Interview Lift
1429
Avg Prosecution Days
Based on 313 resolved cases, 2023–2026

Rejection Statute Breakdown

24.7%
§101 Eligibility
6.1%
§102 Novelty
35.9%
§103 Obviousness
30.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18402030 SYSTEMS AND METHODS FOR GENERATING A METAVERSE ASSET BASED ON SECURING A PHYSICAL OBJECT Non-Final OA Wells Fargo Bank, N.A.
19259788 DECENTRALIZED STORAGE OF TRANSACTION DATA Final Rejection American Express Travel Related Services Company, Inc.
18142708 ADAPTABLE MESSAGING Non-Final OA MasterCard International Incorporated
18935956 CROSS-BORDER QUICK RESPONSE (QR) PAYMENT FLOW FOR ENCRYPTED PRIMARY ACCOUNT NUMBER (PAN) PAYMENT FLOW Non-Final OA Visa International Service Association

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