Prosecution Insights
Last updated: October 02, 2026

Examiner: KETCHAM, KAREN A

Tech Center 1600 • Art Units: 1611 1614

This examiner grants 20% of resolved cases

Analysis

Karen A. Ketcham, in Tech Center 1600 and Art Unit 1611, has resolved 55 cases. Her allowance rate is low at 20.0%, and the median days to allowance is 1276. This indicates a very challenging prosecution environment with a low probability of success and a long wait for a final decision.

However, the interview lift of 38.8% is significant. This suggests that while the baseline 20.0% allowance rate is low, an interview can substantially improve the chances of obtaining a patent. For the 55 cases resolved, practitioners should prioritize interviews to navigate the 1276-day median timeline and increase their odds of success. The data indicates that direct communication is essential for overcoming the high level of difficulty in this docket.

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

Performance Statistics

20.0%
Allow Rate
-40.0% vs TC avg
113
Total Applications
+38.8%
Interview Lift
1276
Avg Prosecution Days
Based on 55 resolved cases, 2023–2026

Rejection Statute Breakdown

1.4%
§101 Eligibility
11.7%
§102 Novelty
58.8%
§103 Obviousness
20.9%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17549989 Stable Skin Care Emulsion and Methods of Using the Same Final Rejection The Procter & Gamble Company
18285315 Polymer Liposome Hydrogel Non-Final OA THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY
17640220 MICROBIOCIDAL USE Final Rejection DSM IP ASSETS B.V.
17602866 FORMULATIONS FOR ENCAPSULATION AND BIOAVAILABILITY IMPROVEMENT OF BIOACTIVE COMPOUNDS BASED ON NATURAL PLANT BASED MATERIALS Final Rejection TECHNION RESEARCH & DEVELOPMENT FOUNDATION LIMITED
18731010 COMPOSITIONS AND METHODS FOR CLEANSING KERATIN MATERIALS Non-Final OA L'Oreal
17731816 COMPOSITIONS SUITABLE AS SETTERS Final Rejection L'OREAL
16863040 WATER-IN-OIL EMULSIONS CONTAINING LATEX AND SILOXYSILICATE RESIN Non-Final OA L'ORÉAL
17353118 SURFACE-TREATED INORGANIC PARTICLES, MANUFACTURING METHOD OF THE SAME, DISPERSION SOLUTION OF THE SAME, AND COSMETIC COMPOSITION INCLUDING THE SAME Final Rejection AMOREPACIFIC CORPORATION
17989940 SELF-ASSEMBLED COMPLEX CONTAINING IRON ION Final Rejection Korea University Research and Business Foundation
19011836 STABLE AGROCHEMICAL COMPOSITION Non-Final OA UPL LTD
17258525 A STABLE LIQUID AGROCHEMICAL FORMULATION Final Rejection UPL LTD
18720432 BIOACTIVE SERUM FRACTIONS FROM FRESH ROSE FLOWERS AND METHODS FOR THEIR PREPARATION AND USES Non-Final OA ISP INVESTMENTS LLC
18297535 COMPOSITION AND METHODS OF TREATMENT USING TRANSDERMAL SUPPLEMENTATION Final Rejection Xygenyx Inc.
17630032 ANTIMICROBIAL COMPOSITIONS AND ARTICLES COMPRISING THE SAME Final Rejection Solventum Intellectual Properties Campany

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