Prosecution Insights
Last updated: October 02, 2026

Examiner: SLIFKA, SARAH A

Tech Center 1700 • Art Units: 1721 1724 1729 1734 1759 1793 1796

This examiner grants 76% of resolved cases

Analysis

Sarah A. Slifka has handled 709 resolved cases in Art Unit 1721. The examiner's allowance rate is 75.5 percent, reflecting a consistent record in Tech Center 1700. This volume of 709 resolved cases allows for reliable strategic planning and benchmarking of prosecution outcomes.

The interview lift of 11.2 percent indicates that interviews are helpful in advancing prosecution toward a grant. While the 11.2 percent lift is moderate, it remains a useful option for clarifying claim scope and addressing rejections in Art Unit 1721. Practitioners should consider the baseline 75.5 percent allowance rate when deciding on the necessity of an interview.

The median days to allowance is 1096, establishing the expected timeframe for reaching a favorable conclusion. This duration of 1096 days is a key metric for applicants to use when managing their patent portfolios in Tech Center 1700. Understanding the relationship between pendency and the volume of resolved cases helps in navigating the examination process effectively.

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

Performance Statistics

75.5%
Allow Rate
+10.5% vs TC avg
722
Total Applications
+11.2%
Interview Lift
1096
Avg Prosecution Days
Based on 709 resolved cases, 2023–2026

Rejection Statute Breakdown

1.1%
§101 Eligibility
17.1%
§102 Novelty
56.1%
§103 Obviousness
22.5%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18666588 TEMPERATURE DETECTION UNIT AND POWER STORAGE DEVICE Non-Final OA TOYOTA JIDOSHA KABUSHIKI KAISHA
18599362 ELECTRODE CATALYST FOR FUEL CELL AND SOLID POLYMER FUEL CELL INCLUDING THE SAME Non-Final OA TOYOTA JIDOSHA KABUSHIKI KAISHA
18327664 SYSTEMS AND METHODS FOR A FLOW FIELD PLATE DESIGN FOR POLYMER-ELECTROLYTE-MEMBRANE FUEL CELLS Non-Final OA Toyota Motor Engineering & Manufacturing North America, Inc.
18527289 SOLID ELECTROLYTE MATERIAL AND BATTERY USING SAME Non-Final OA Panasonic Intellectual Property Management Co., Ltd.
18610284 ELECTRODE PLATE, ELECTRODE ASSEMBLY, BATTERY, ELECTRIC DEVICE, AND MANUFACTURING METHOD FOR ELECTRODE PLATE Non-Final OA CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
18589233 ELECTROLYTE AND BATTERY CELL, BATTERY, AND ELECTRICAL DEVICE CONTAINING SAME Non-Final OA CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
18489018 CELL PROCESSING EQUIPMENT, CELL PROCESSING METHOD, AND BATTERY PRODUCTION LINE Non-Final OA CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED
18522539 LFP/MESHED LI-METAL BATTERY CELL Non-Final OA GM GLOBAL TECHNOLOGY OPERATIONS LLC
18449016 DOUBLE-WALLED ENCLOSURE AND/OR COOLING SYSTEM FOR PRISMATIC BATTERY CELLS Non-Final OA GM GLOBAL TECHNOLOGY OPERATIONS LLC
18546083 ANODE MATERIAL, METHOD FOR PREPARING THE SAME, AND LITHIUM ION BATTERY Non-Final OA Dingyuan New Energy Technology Co., LTD.
18211053 LITHIUM-RICH COMPOSITIONS Non-Final OA Redwood Materials, Inc.

Facing This Examiner?

IP Author analyzes examiner patterns and generates tailored response strategies with the highest chance of allowance.

Build Your Strategy

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month