Prosecution Insights
Last updated: October 02, 2026

Examiner: ARMSTRONG, SUSANNAH SIPPLE

Tech Center 3600 • Art Units: 1616 1629 3642

This examiner grants 30% of resolved cases

Analysis

Susannah Sipple Armstrong is an examiner in Tech Center 3600 and Art Unit 1616. With 29 resolved cases, she has an allowance rate of 31.0 percent. This 31.0 percent rate indicates the frequency of granted patents among the 29 resolved cases. Practitioners can use these figures to evaluate the prosecution environment and the likelihood of success in this specific unit.

The interview lift is 52.5 percent, which is a statistic that shows the change in allowance probability following an interview. This 52.5 percent lift is a notable metric for developing a strategy. The median days to allowance is 1171, providing a benchmark for the time required to reach a grant. This 1171-day median is a key data point for managing expectations. These figures from Tech Center 3600 and Art Unit 1616 serve as the basis for understanding the examiner's historical performance and the duration of the prosecution cycle.

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

Performance Statistics

30.0%
Allow Rate
-22.0% vs TC avg
86
Total Applications
+53.1%
Interview Lift
1175
Avg Prosecution Days
Based on 30 resolved cases, 2023–2026

Rejection Statute Breakdown

4.6%
§101 Eligibility
13.9%
§102 Novelty
36.3%
§103 Obviousness
24.7%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18444627 CELLULOSE PARTICLE Final Rejection FUJIFILM Business Innovation Corp.
18755788 Oral Care Compositions Comprising Hops Beta Acids Non-Final OA The Procter & Gamble Company
18825202 AGRICULTURAL COMPOSITION AND METHOD FOR CULTIVATING PLANTS USING SAME Non-Final OA KANEKA CORPORATION
18853592 ADAPTIVE PATCHES FOR DYNAMIC ORGANS Non-Final OA THE UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL
18836156 COMPOSITIONS AND METHODS FOR ENHANCED DRUG LOADING OF LONG-ACTING IN SITU FORMING IMPLANTS AND USES THEREOF Non-Final OA The University of North Carolina at Chapel Hill
17801705 EUTECTIC BASED ANESTHETIC COMPOSITIONS AND APPLICATIONS THEREOF Non-Final OA The University of North Carolina at Chapel Hill
18489193 ENHANCED YEASTICIDAL EFFICACY OF LACTIC ACID BASED ANTIMICROBIAL HANDWASH Non-Final OA ECOLAB USA INC.
18691863 LIPIODOL FORMULATION FOR TRANSARTERIAL CHEMOIMMUNOEMBOLIZATION Final Rejection Northwestern University
18566802 NON-CONTACT LITHOTRIPSY USING PHOTONIC NANOPARTICLES Non-Final OA The Cleveland Clinic Foundation
18505079 MICROCAPSULE AND PREPARATION METHOD AND USE THEREOF Final Rejection KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
18499201 NATURE-BASED FACIAL LIFTING MASK Final Rejection L'OREAL
18004734 WATER-IN-OIL EMULSION HAVING A HIGH INTERNAL WATER PHASE CONTENT Non-Final OA L'OREAL
18278677 COATED MEDICAL DEVICE AND PRODUCTION METHOD THEREFOR Non-Final OA TORAY Industries, Inc.
18686557 Multi-Layered Dextrose Tablets Non-Final OA Fertin Pharma A/S
18286890 RESHAPING COMPOSITION FOR KERATIN FIBERS Non-Final OA KAO GERMANY GMBH
18552034 PICKERING EMULSIONS STABILIZED BY PARTICLES Final Rejection Firmenich SA
18285017 COMPOSITION FOR TREATING A KERATINOUS SURFACE Non-Final OA Givaudan SA
18714147 METHOD FOR PREPARING ORAL COMPOSITE TABLET CONTAINING PROTON PUMP INHIBITOR AND ANTACID AND ORAL COMPOSITE TABLET PREPARED THEREBY Non-Final OA HANMI PHARM. CO., LTD.
17798029 COMPOSITION FOR ELECTROSPINNING Final Rejection BAKEL S.R.L.

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