Prosecution Insights
Last updated: October 26, 2026

Daniel Patrick Gruszka, USPTO Patent Examiner

Listed by the USPTO as GRUSZKA, DANIEL PATRICK

Tech Center 4100 • Art Units: 2121 2147 3628 4100

This examiner grants 33% of resolved cases

Analysis

Daniel Patrick Gruszka is a USPTO patent examiner in tech center 4100 and art unit 2121. The profile contains 6 resolved cases, an allowance rate of 33.3%, and a median of 1527 days to allowance. The interview lift is 66.7%, indicating a strong measured association between interviews and allowance outcomes. Because only 6 cases are resolved, the figures are preliminary, but they identify interview practice as a potentially important issue for applications in this record.

The listed companies are Microsoft Technology Licensing, LLC, Google LLC, and Embed Security Inc. The leading firms are ALCE PLLC, BIRCH STEWART KOLASCH & BIRCH, LLP, and Cantor Colburn LLP. These organizations provide context for the software and security technologies represented in the available cases.

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

Performance Statistics

33.3%
Allow Rate
-26.7% vs TC avg
52
Total Applications
+66.7%
Interview Lift
1527
Avg Prosecution Days
Based on 6 resolved cases, 2023–2026

Rejection Statute Breakdown

39.4%
§101 Eligibility
7.8%
§102 Novelty
46.7%
§103 Obviousness
5.6%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17767269 Event Detection in a Data Stream Final Rejection Telefonaktiebolaget LM Ericsson (publ)
18240954 Corrective Reward Optimization for Sequential Labeling Final Rejection Google LLC
18178684 ACTIVATION FUNCTION FOR HOMOMORPHICALLY-ENCRYPTED NEURAL NETWORKS Final Rejection Intel Corporation
18802731 HUMAN COLLABORATIVE AGENT DEVICE, SYSTEM, MULTI-AGENT LEARNING METHOD, AND, STORAGE MEDIUM Non-Final OA Mitsubishi Electric Corporation
18013894 PROVIDING AN ALARM RELATING TO ANOMALY SCORES ASSIGNED TO INPUT DATA METHOD AND SYSTEM Final Rejection SIEMENS AKTIENGESELLSCHAFT
18752058 ATTENTION-BASED DATA-DRIVEN ATTRIBUTION Non-Final OA Microsoft Technology Licensing, LLC
18510407 Producing a Reduced-Size Model by Explanation Tuning Non-Final OA Microsoft Technology Licensing, LLC
17564002 GENERATING SYNTHETIC TRAINING DATA FOR PERCEPTION MACHINE LEARNING MODELS USING DATA GENERATORS Final Rejection VOLKSWAGEN AKTIENGESELLSCHAFT
17660144 USING HEADER MATRICES FOR FEATURE IMPORTANCE ANALYSIS IN MACHINE LEARNING MODELS Non-Final OA Dell Products L.P.

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Frequently Asked Questions

What is examiner Daniel Patrick Gruszka's allowance rate?

33.3% of resolved applications examined by Daniel Patrick Gruszka were allowed (6 resolved cases), compared with 32.0% across Art Unit 2121 over the last five years.

Does an interview help with examiner Daniel Patrick Gruszka?

This examiner's interview lift is +66.7 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Daniel Patrick Gruszka take to allow a patent?

Applications allowed by Daniel Patrick Gruszka took 1,527 days on average from filing to allowance.

Which art unit does examiner Daniel Patrick Gruszka work in?

Daniel Patrick Gruszka examines applications in Art Unit 2121 in Tech Center 4100.

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