Prosecution Insights
Last updated: October 02, 2026

Examiner: KIRKWOOD, SPENCER HAMMETT

Tech Center 3700 • Art Units: 3742 3761

This examiner grants 50% of resolved cases

Analysis

Spencer Hammett Kirkwood examines cases in Art Unit 3742 of Tech Center 3700. He has 247 resolved cases and an allowance rate of 50.2%. This rate suggests that a portion of the applications on his docket result in a grant, requiring a careful and well-supported prosecution strategy to ensure success.

The interview lift is 13.1%. This positive lift indicates that interviews are a helpful tool for moving cases toward allowance. Applicants should consider direct engagement to improve their 50.2% chance of success, as the data suggests that verbal discussions can help clarify technical points and resolve outstanding rejections more effectively than written responses alone.

The median days to allowance is 1352. This is a standard timeline for Tech Center 3700. Practitioners should be prepared for a typical prosecution length and use the 13.1% interview lift to help ensure their applications are among those that are granted. The recorded data provides a clear baseline for navigating the 1352-day median pendency.

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

Performance Statistics

50.2%
Allow Rate
-19.8% vs TC avg
283
Total Applications
+13.1%
Interview Lift
1352
Avg Prosecution Days
Based on 247 resolved cases, 2023–2026

Rejection Statute Breakdown

0.7%
§101 Eligibility
14.5%
§102 Novelty
65.9%
§103 Obviousness
17.6%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
16934551 SYSTEMS AND METHODS FOR WELDING ASSET TRACKING Final Rejection ILLINOIS TOOL WORKS INC.
17776472 MOUNTING WIRING BOARD, ELECTRONIC DEVICE MOUNTING BOARD, METHOD OF MOUNTING ELECTRONIC DEVICE, MICROWAVE HEATING METHOD, AND MICROWAVE HEATING APPARATUS Final Rejection NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
17798909 DEVICE AND METHOD FOR HEATING A FLUID IN A PIPELINE WITH SINGLE-PHASE ALTERNATING CURRENT Final Rejection Linde GmbH
17709811 THERMAL MATERIAL AND A METHOD OF MAKING THE SAME Non-Final OA National University of Singapore
17118158 PART FOR SUBSTRATE PROCESSING APPARATUS AND SUBSTRATE PROCESSING SYSTEM Final Rejection TOKYO ELECTRON LIMITED
18140228 TWO PIECE CAST IRON FIRE PIT COOKTOP Non-Final OA Lamplight Farms Incorporated
18105517 LIQUID DISPENSER APPARATUS Final Rejection UNITO SMART TECHNOLOGIES LIMITED

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