Prosecution Insights
Last updated: October 02, 2026

Examiner: PIRO, NICHOLAS ANTHONY

Tech Center 4100 • Art Units: 1732 1738 1788 4100

This examiner grants 46% of resolved cases

Analysis

Nicholas Anthony Piro is an examiner in Tech Center 4100 and Art Unit 1732. The examiner has 37 resolved cases and an allowance rate of 45.9 percent. This suggests a more selective examination process. The median days to allowance is 1271, which provides a timeline for the expected duration of prosecution. With 37 resolved cases, the data offers a specific view of the examiner's historical patterns.

The interview lift for this examiner is 35.9 percent. This significant lift indicates that interviews are highly correlated with a successful outcome compared to the 45.9 percent baseline. Practitioners should strongly consider requesting an interview to take advantage of the 35.9 percent increase in allowance probability. The 1271 median days to allowance is an important factor for planning in Art Unit 1732. Overall, the 45.9 percent allowance rate and the 35.9 percent interview lift suggest that proactive communication is a very effective strategy across the 37 resolved cases.

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

Performance Statistics

45.9%
Allow Rate
-14.1% vs TC avg
107
Total Applications
+35.9%
Interview Lift
1271
Avg Prosecution Days
Based on 37 resolved cases, 2023–2026

Rejection Statute Breakdown

0.5%
§101 Eligibility
14.2%
§102 Novelty
48.7%
§103 Obviousness
22.1%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18056415 METHODS OF USING AND CONVERTING RECOVERED RADIUM Final Rejection ExxonMobil Technology and Engineering Company
18023903 Ligand Compound, Organochromium Compound and Catalyst System Comprising the Same Non-Final OA LG Chem, Ltd.
17767800 TRANSITION METAL COMPOUND AND CATALYST COMPOSITION COMPRISING THE SAME Non-Final OA LG CHEM, LTD.
18035946 PROCESS FOR CONCENTRATING DILUTED SULFURIC ACID Non-Final OA BASF SE
18399192 METHOD FOR PREPARING LITHIUM IRON PHOSPHATE POSITIVE ELECTRODE MATERIAL, POSITIVE ELECTRODE POLE PIECE AND LITHIUM ION BATTERY Non-Final OA BYD COMPANY LIMITED
17998938 PROCESS FOR IMPROVING THE QUALITY OF HYDROGEN-BEARING ORGANIC LIQUIDS Non-Final OA ARKEMA FRANCE
18681346 METHOD FOR PRODUCING LITHIUM CONTAINING SOLUTION AND METHOD FOR PRODUCING LITHIUM HYDROXIDE Non-Final OA SUMITOMO METAL MINING CO., LTD.
18579520 METHOD FOR PROCESSING ALLOY Final Rejection SUMITOMO METAL MINING CO., LTD.
18401946 NICKEL-CONTAINING COMPOSITE HYDROXIDE AND PRODUCTION PROCESS THEREFOR, POSITIVE-ELECTRODE ACTIVE MATERIAL FOR A NONAQUEOUS-ELECTROLYTE SECONDARY BATTERY AND PRODUCTION PROCESS THEREFOR, AND NONAQUEOUS-ELECTROLYTE SECONDARY BATTERY Non-Final OA SUMITOMO METAL MINING CO., LTD.
18267054 METHOD FOR PRODUCING LITHIUM HYDROXIDE Final Rejection SUMITOMO METAL MINING CO., LTD.
18137793 Perovskite Oxygen Carriers and Methods for Making and Using Perovskite Oxygen Carriers Non-Final OA United States Department of Energy
17521290 ENVIRONMENTALLY-FRIENDLY COMPOSITIONS AND METHODS FOR EXTRACTING MINERALS AND METALS FROM ORE Non-Final OA Locus Solutions IPCo, LLC
18268451 METHOD FOR RECOVERING LEAD FROM COPPER SMELTING DUST Non-Final OA MITSUBISHI MATERIALS CORPORATION
18712556 ALUMINA POWDER Non-Final OA SUMITOMO CHEMICAL COMPANY, LIMITED
18018283 CATALYST FOR AMMONIA SYNTHESIS WITH IMPROVED ACTIVITY Non-Final OA CLARIANT INTERNATIONAL LTD
17999287 Process for Production of Thermoplastic Vulcanizates using Supported Catalyst Systems and Compositions Made Therefrom Non-Final OA ExxonMobil Chemical Patents Inc
18567755 GADOLINIA PARTICLES AND METHOD FOR PRODUCING GADOLINIA PARTICLES Non-Final OA DIC Corporation
18567433 HEXAGONAL BORON NITRIDE POWDER AND METHOD FOR PRODUCING SAME, AND COSMETIC PREPARATION AND METHOD FOR PRODUCING SAME Final Rejection Denka Company Limited
18580637 NANO-SHEET FERRIC PHOSPHATE, PREPARATION METHOD THEREFOR AND USE THEREOF Final Rejection HUNAN BRUNP EV RECYCLING CO., LTD.
18235364 RADIALLY STRUCTURED NICKEL-BASED PRECURSOR AND PREPARATION METHOD THEREOF Non-Final OA HUNAN BRUNP EV RECYCLING CO., LTD.
18213839 RECYCLING METHOD FOR MIXED WASTE MATERIAL OF LITHIUM NICKEL MANGANESE COBALT OXIDE AND LITHIUM IRON PHOSPHATE Final Rejection HUNAN BRUNP EV RECYCLING CO., LTD.
18004684 ALKALINE HYDROLYSIS OF WASTE CELLULOSE Non-Final OA NOVAMONT S.P.A.
17706584 SYSTEMS AND PROCESSES FOR RECOVERY OF HIGH-GRADE RARE EARTH CONCENTRATE FROM ACID MINE DRAINAGE Final Rejection West Virginia University

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