Prosecution Insights
Last updated: October 02, 2026

Examiner: WALKER, KEITH D

Tech Center 1700 • Art Units: 1722 1726 1735 1738 1795

This examiner grants 35% of resolved cases

Analysis

Keith D Walker is an examiner in Tech Center 1700 and Art Unit 1722, with 345 resolved cases. The allowance rate is 35.1 percent, and the median days to allowance is 1680. These figures indicate the success rate and timeline for applications processed by this examiner. The 1680-day median suggests that prosecution in this unit involves a process that extends over the timeframe indicated by the data.

The data reveals an interview lift of 23.5 percent, which suggests that verbal communication is a tool for increasing the likelihood of an allowance. This 23.5 percent lift is a factor when compared to the baseline allowance rate of 35.1 percent. Practitioners should prepare for the median pendency and may consider interviews to alter the outcome of their patent cases in Art Unit 1722. With 345 resolved cases, the examiner has a documented history that highlights the impact of interviews on the recorded allowance rate.

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

Performance Statistics

35.1%
Allow Rate
-29.9% vs TC avg
356
Total Applications
+23.5%
Interview Lift
1680
Avg Prosecution Days
Based on 345 resolved cases, 2023–2026

Rejection Statute Breakdown

0.9%
§101 Eligibility
17.8%
§102 Novelty
55.1%
§103 Obviousness
21.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18023531 SECONDARY BATTERY Non-Final OA Panasonic Intellectual Property Management Co., Ltd.
18078046 METAL-AIR BATTERY MODULE Final Rejection SHARP KABUSHIKI KAISHA
18689020 PRISMATIC SECONDARY BATTERY HAVING IMPROVED SAFETY Non-Final OA LG ENERGY SOLUTION, LTD.
18086247 Positive Electrode Slurry Composition, Positive Electrode and Lithium Secondary Battery Manufactured Using the Same Final Rejection LG Energy Solution, Ltd.
18468777 STORAGE METHOD Final Rejection ISUZU MOTORS LIMITED
16469485 A METHOD FOR MANUFACTURING A THERMALLY TREATED STEEL SHEET Final Rejection ArcelorMittal
18076089 ELECTRODE BODY, RECHARGEABLE BATTERY, AND METHOD FOR MANUFACTURING ELECTRODE BODY Final Rejection PRIME PLANET ENERGY & SOLUTIONS, INC.

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