Prosecution Insights
Last updated: October 27, 2026

Maria Cristi Owen Sherr, USPTO Patent Examiner

Listed by the USPTO as SHERR, MARIA CRISTI OWEN

Tech Center 3600 • Art Units: 3685 3697

This examiner grants 26% of resolved cases

Analysis

SHERR, MARIA CRISTI OWEN has 412 resolved cases in Tech Center 3600 and Art Unit 3685. The allowance rate is 26.2%, the interview lift is 13.8%, and the median time to allowance is 2194 days. The profile shows a low allowance rate and the longest stated median prosecution period in this record, with interviews producing a positive but limited signal.

Wells Fargo Bank, N.A., Mastercard International Incorporated, and Balcony Technology Group Inc. are the leading listed companies. Alley IP, AMIN, TUROCY & WATSON, LLP, and BUTLER SNOW LLP are the leading listed firms. Practitioners should account for the 26.2% allowance rate when evaluating claim breadth and amendment options. The 2194-day median also supports early escalation planning, careful continuation decisions, and candid timing discussions.

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

Performance Statistics

26.2%
Allow Rate
-25.8% vs TC avg
444
Total Applications
+13.8%
Interview Lift
2194
Avg Prosecution Days
Based on 412 resolved cases, 2023–2026

Rejection Statute Breakdown

26.3%
§101 Eligibility
9.4%
§102 Novelty
43.1%
§103 Obviousness
21.0%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18666729 GLOBAL MODELER USING A PROTECTION ARCHITECTURE Non-Final OA Wells Fargo Bank, N.A.
18334255 COMPOSITE EVENT SIGNATURE ANALYSIS Non-Final OA Wells Fargo Bank, N.A.
18101373 NETWORK REGISTRY FOR PAYMENT NETWORKS Final Rejection American Express Travel Related Services Company, Inc.
19208041 SYSTEMS AND METHODS FOR CONSENT MANAGEMENT BY ISSUERS ON BEHALF OF CARDHOLDERS Final Rejection Mastercard International Incorporated
17556381 METHOD AND SYSTEM OF PROVIDING FOR OFFLINE TRANSACTIONS IN DIGITAL CURRENCIES Non-Final OA MASTERCARD INTERNATIONAL INCORPORATED
18086915 SYSTEMS AND METHODS FOR ENABLING NON-FUNGIBLE TOKENS (NFTs) IN A VIRTUAL/METAVERSE ENVIRONMENT Final Rejection Adeia Guides Inc.
18611790 DISTRIBUTED LEDGER SYSTEM AND CONTROL METHOD FOR DISTRIBUTED LEDGER SYSTEM Non-Final OA Hitachi, Ltd.
17831279 DATA SECURITY ENHANCEMENT FOR ONLINE TRANSACTIONS INVOLVING PAYMENT CARD ACCOUNTS Final Rejection Block, Inc.

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Frequently Asked Questions

What is examiner Maria Cristi Owen Sherr's allowance rate?

26.2% of resolved applications examined by Maria Cristi Owen Sherr were allowed (412 resolved cases), compared with 40.6% across Art Unit 3685 over the last five years.

Does an interview help with examiner Maria Cristi Owen Sherr?

This examiner's interview lift is +13.8 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Maria Cristi Owen Sherr take to allow a patent?

Applications allowed by Maria Cristi Owen Sherr took 2,194 days on average from filing to allowance.

Which art unit does examiner Maria Cristi Owen Sherr work in?

Maria Cristi Owen Sherr examines applications in Art Unit 3685 in Tech Center 3600 (Transportation, E-Commerce & Mechanical Systems).

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