Prosecution Insights
Last updated: October 26, 2026

Matthew Walter Baca, USPTO Patent Examiner

Listed by the USPTO as BACA, MATTHEW WALTER

Tech Center 2800 • Art Units: 2857 2863

This examiner grants 72% of resolved cases

Analysis

BACA, MATTHEW WALTER is a USPTO patent examiner in tech center 2800 and art unit 2857. The record contains 127 resolved cases, a 71.7% allowance rate, and a median of 1050 days to allowance. The reported interview lift is 5.6%.

International Business Machines Corporation, Hitachi Ltd., and Halliburton Energy Services Inc. are the listed leading companies. The leading firms are FOLEY & LARDNER LLP, Baker Botts L.L.P., and Bracewell LLP. Practitioners reviewing this examiner can use the allowance and timing data as an initial prosecution reference, then consider the recurring company and firm affiliations when developing filing and response plans.

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

Performance Statistics

71.7%
Allow Rate
+3.7% vs TC avg
168
Total Applications
+5.6%
Interview Lift
1050
Avg Prosecution Days
Based on 127 resolved cases, 2023–2026

Rejection Statute Breakdown

21.3%
§101 Eligibility
11.9%
§102 Novelty
43.1%
§103 Obviousness
23.5%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18492212 REAL-TIME FEEDBACK AND MACHINE LEARNING SYSTEM FOR DOWNHOLE ENVIRONMENTS Final Rejection HALLIBURTON ENERGY SERVICES, INC.
18661009 QUANTIFYING MICROSTRUCTURAL FEATURES IN THERMAL SPRAY COATINGS USING IMAGE ANALYSIS TECHNIQUES Non-Final OA Rolls-Royce North American Technologies, Inc.
18556581 GRAPHICAL USER INTERFACE FOR SURGICAL PERFORMANCE ASSESSMENT Final Rejection INTUITIVE SURGICAL OPERATIONS, INC.
18576889 FLUXING CALIBRATION Non-Final OA Illinois Tool Works Inc.
18567938 SYSTEM AND METHOD FOR MONITORING POLLINATION OF PLANTS Final Rejection SIGNIFY HOLDING B.V.
18211340 IOT AND SENSOR FEED ANALYSIS BASED MACHINE MAINTENANCE Non-Final OA INTERNATIONAL BUSINESS MACHINES CORPORATION
17929322 DIGITAL TWIN MACHINE MAINTENANCE DELAYS FOR TASK MANAGEMENT Non-Final OA INTERNATIONAL BUSINESS MACHINES CORPORATION
18470157 Condition-Based Method for Malfunction Prediction Non-Final OA HITACHI ENERGY LTD
17921404 AUTOMATIC ANALYSIS APPARATUS AND MAINTENANCE METHOD IN AUTOMATIC ANALYSIS APPARATUS Final Rejection HITACHI HIGH-TECH CORPORATION

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Frequently Asked Questions

What is examiner Matthew Walter Baca's allowance rate?

71.7% of resolved applications examined by Matthew Walter Baca were allowed (127 resolved cases), compared with 72.0% across Art Unit 2857 over the last five years.

Does an interview help with examiner Matthew Walter Baca?

This examiner's interview lift is +5.6 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Matthew Walter Baca take to allow a patent?

Applications allowed by Matthew Walter Baca took 1,050 days on average from filing to allowance.

Which art unit does examiner Matthew Walter Baca work in?

Matthew Walter Baca examines applications in Art Unit 2857 in Tech Center 2800 (Semiconductors, Circuits & Optics).

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