Prosecution Insights
Last updated: October 02, 2026

Examiner: STEVENS, MARK V

Tech Center 1600 • Art Units: 1600 1613 1646 1655

This examiner grants 66% of resolved cases

Analysis

Mark V. Stevens serves as a patent examiner in Tech Center 1600 and Art Unit 1600. He has overseen 873 resolved cases. The examiner demonstrates an allowance rate of 65.5 percent, which indicates the proportion of applications that successfully reach issuance. This rate provides a clear expectation for practitioners regarding the probability of a grant when their cases are assigned to this examiner.

The data highlights a significant interview lift of 41.6 percent. This metric suggests that conducting an interview with the examiner is a highly effective strategy for moving a case toward allowance. Practitioners can use this 41.6 percent lift to justify the time and expense of direct communication, as it represents a measurable improvement in the likelihood of a positive outcome. This is a key tactical consideration for Tech Center 1600.

The median time to allowance is 974 days. This duration defines the typical timeframe for the prosecution cycle for successful applications. When managing a portfolio, practitioners can use this 974 day figure to estimate the period required to navigate the examination process. The 873 resolved cases provide a stable basis for these metrics in Art Unit 1600.

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

Performance Statistics

65.5%
Allow Rate
+5.5% vs TC avg
926
Total Applications
+41.6%
Interview Lift
974
Avg Prosecution Days
Based on 873 resolved cases, 2023–2026

Rejection Statute Breakdown

5.0%
§101 Eligibility
11.7%
§102 Novelty
39.6%
§103 Obviousness
23.6%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18984644 PHARMACEUTICAL COMPOSITIONS COMPRISING BUPROPION AND CYSTEINE Non-Final OA ANTECIP BIOVENTURES II LLC
18775416 POROUS MEDICAL DEVICE AND METHODS OF USE Non-Final OA Boston Scientific Scimed, Inc.
18517448 ANTI-TUMOR AGENT Non-Final OA FUJIFILM Corporation
18911341 ORAL CARE COMPOSITIONS COMPRISING DICARBOXYLIC ACID Non-Final OA The Procter & Gamble Company
18572884 COMPOSITIONS AND METHODS FOR INCREASING THE EFFICACY OF IMMUNOTHERAPIES AND VACCINES Final Rejection The Regents of the University of Michigan
18684750 HERBICIDAL MALONAMIDES Non-Final OA BASF SE
18870231 HERBICIDAL DERIVATIVES Non-Final OA SYNGENTA CROP PROTECTION AG
18802080 SOLVENT-BASED DETERGENT COMPOSITIONS AND METHODS FOR HYDROPHOBIC SOIL REMOVAL Non-Final OA ECOLAB USA INC.
18169695 HEMOSTATIC NANOPARTICLES FOR THE TREATMENT OF NON-COMPRESSIBLE HEMORRHAGE AND INTERNAL BLEEDING Final Rejection The General Hospital Corporation
18738288 Zinc Phosphate Complex Final Rejection Colgate-Palmolive Company
18594760 Oral Care Compositions and Methods of Use Final Rejection Colgate-Palmolive Company
18992397 BIOLOGICAL CONTROL OF SOFT ROT AND BIOFILMS BY MICROBIAL PREDATORS ENCAPSULATED IN CARRIERS Non-Final OA THE STATE OF ISRAEL, MINISTRY OF AGRICULTURE & RURAL DEVELOPMENT, AGRICULTURAL RESEARCH ORGANIZATION
18293204 POLYMER NANOPARTICLES VIA CONDENSED DROPLET POLYMERIZATION Final Rejection CORNELL UNIVERSITY
18677400 COMPOSITION FOR TREATMENT OF WOUNDS CONTAINING STEM CELL-DERIVED EXOSOMES AND METHOD FOR PREPARING SAME Final Rejection BREXOGEN INC.
18847701 HAIR CONDITIONER FORMULATION Non-Final OA Dow Silicones Corporation
18370928 CANNABIS FARMING SYSTEMS AND METHODS Final Rejection INSECTERGY, LLC
18555446 PEPTIDES, NANOVESICLES, AND USES THEREOF FOR DRUG DELIVERY Non-Final OA NATIONAL RESILIENCE, LLC
18273694 TOPICAL FORMULATION CONTAINING MODIFIED PHOSPHOLIPID COMPOUNDS Non-Final OA EGIS GYÓGYSZERGYÁR ZRT.
18257526 GLYCOSYLATED BACTERIORUBERINS AND INDUSTRIAL APPLICATIONS THEREOF Non-Final OA NAOS INSTITUTE OF LIFE SCIENCE

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