Prosecution Insights
Last updated: October 02, 2026

Examiner: PULLEN, NIKOLAS TAKUYA

Tech Center 1700 • Art Units: 1733 1734 1738 1784

This examiner grants 52% of resolved cases

Analysis

Nikolas Takuya Pullen is an examiner in Tech Center 1700 and Art Unit 1733. He has handled 120 resolved cases with an allowance rate of 52.5 percent. This 52.5 percent rate indicates a balanced approach to examination, providing a baseline for applicant expectations.

The interview lift is 8.4 percent. This figure suggests that conducting an interview is a productive strategy for increasing the likelihood of a grant. The 8.4 percent lift provides a boost to the allowance rate, making it a tactical option for practitioners to consider during prosecution.

The median days to allowance is 1208. This timeline represents the typical duration for applications to reach a final grant. With 120 resolved cases, these metrics offer a clear view of the examiner's performance. The 1208-day median defines the expected prosecution experience for applicants in this docket.

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

Performance Statistics

52.5%
Allow Rate
-12.5% vs TC avg
163
Total Applications
+8.4%
Interview Lift
1208
Avg Prosecution Days
Based on 120 resolved cases, 2023–2026

Rejection Statute Breakdown

1.0%
§101 Eligibility
14.2%
§102 Novelty
46.2%
§103 Obviousness
34.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18804547 COMPACTION IMPACTS ON A LEACH STOCKPILE Non-Final OA FREEPORT MINERALS CORPORATION
18616794 METHODS AND SYSTEMS FOR LEACHING A METAL-BEARING MATERIAL Final Rejection FREEPORT MINERALS CORPORATION
18696553 CIRCUIT FORMING METHOD AND INFORMATION PROCESSING DEVICE Non-Final OA FUJI CORPORATION
17046417 METHOD FOR RECOVERING ACTIVE METALS FROM LITHIUM SECONDARY BATTERY Non-Final OA SK INNOVATION CO., LTD.
18716356 ATMOSPHERE FURNACE CONTROL Non-Final OA ArcelorMittal
18090674 LITHIUM EXTRACTION APPARATUS AND LITHIUM EXTRACTION METHOD Non-Final OA BYD COMPANY LIMITED
18597012 SELECTIVE METAL RECOVERY Non-Final OA Khalifa University of Science and Technology
18669761 HIGH THERMAL CONDUCTIVITY, LOW THERMAL EXPANSION COMPOSITES Non-Final OA The Research Foundation for The State University of New York
18699957 Solution Circulations in a Process for Calcination and Leaching of a Lithium-Containing Mineral Non-Final OA METSO FINLAND OY
18496481 CADMIUM REMOVAL IN LITHIUM-ION BATTERY RECYCLING Final Rejection II-VI Delaware, Inc.
16500127 PROCESS FOR THE RECOVERY OF LITHIUM Final Rejection Umicore
18385513 METHOD AND SYSTEM OF REDUCING NON-FERROUS METAL CONTENT OF SCRAP STEEL Final Rejection Nucor Corporation
17760241 RECOVERY OF VANADIUM FROM ALKALINE SLAG MATERIALS Final Rejection AVANTI MATERIALS LTD

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