Prosecution Insights
Last updated: October 02, 2026

Examiner: TAKENAKA, RISA

Tech Center 1600 • Art Units: 1600 1632 1653 1682

This examiner grants 27% of resolved cases

Analysis

Risa Takenaka has resolved 22 cases in Art Unit 1600. The allowance rate is 27.3 percent, and the interview lift is 100.0 percent. The median days to allowance is 1431. These metrics from Tech Center 1600 indicate a challenging baseline for applicants, though the lift suggests interviews are highly impactful. The 1431-day median reflects a lengthy prosecution process.

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

Performance Statistics

27.3%
Allow Rate
-32.7% vs TC avg
64
Total Applications
+100.0%
Interview Lift
1431
Avg Prosecution Days
Based on 22 resolved cases, 2023–2026

Rejection Statute Breakdown

4.2%
§101 Eligibility
16.9%
§102 Novelty
39.7%
§103 Obviousness
32.3%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18613041 REAGENTS AND METHODS FOR PROMOTING ARTERIAL ENDOTHELIUM DIFFERENTIATION AND NITRIC OXIDE PRODUCTION Non-Final OA Wisconsin Alumni Research Foundation
18005167 METHODS ENABLING INFECTION AND DIFFERENTIATION OF HUMAN DISTAL LUNG ORGANOIDS BY SARS-COV-2 AND OTHER PATHOGENS Final Rejection The Board of Trustees of the Leland Stanford Junior University
17779427 IN VITRO CELL BASED POTENCY ASSAY Non-Final OA Merck Sharp & Dohme LLC
17754050 COMPOSITIONS AND METHODS FOR MODULATING GENOMIC COMPLEX INTEGRITY INDEX Non-Final OA Flagship Pioneering Innovations V, Inc.
18263471 METHODS FOR INCREASING VIRAL TRANSDUCTION OF CELLS Final Rejection Trustees of Dartmouth College
18387165 METHOD FOR INDUCING HYPERTROPHIC MUSCLE FIBERS FOR INDUSTRIAL MEAT PRODUCTION Non-Final OA Yeda Research and Development Co. Ltd.
18296224 TREATMENT OF CANAVAN DISEASE Non-Final OA CITY OF HOPE
18020823 PREFERENTIAL GENERATION OF iPSC CARRYING ANTIGEN SPECIFIC TCRs FROM TUMOR INFILTRATING LYMPHOCYTES Non-Final OA The United States of America,as represented by the Secretary,Department of Health and Human Services
17904581 METHOD FOR TREATING CHRONIC GRAFT VERSUS HOST DISEASE Non-Final OA Mesoblast International Sárl

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