Prosecution Insights
Last updated: October 02, 2026

Examiner: KELLOGG, MICHAEL S

Tech Center 3700 • Art Units: 3737 3768 3791 3793 3798

This examiner grants 43% of resolved cases

Analysis

Michael S Kellogg works in Tech Center 3700 and Art Unit 3737. He has 281 resolved cases. The allowance rate pct is 43.1. This 43.1 allowance rate pct provides a measure of the outcomes for applications on his docket. The 281 resolved cases serve as a basis for evaluating prosecution in Art Unit 3737.

The interview lift pct is 53.6. This 53.6 interview lift pct indicates the correlation between conducting an interview and the probability of an allowance. Practitioners can use the 53.6 figure when deciding whether to engage in verbal advocacy with the examiner. This metric is a component of the data for Tech Center 3700.

The median days to allowance is 1480. This 1480 median days to allowance represents the time required for an application to reach a grant. The 1480 figure is a timeline for the prosecution process from filing to resolution. These metrics provide a view of the examiner's history across the 281 resolved cases.

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

Performance Statistics

43.1%
Allow Rate
-26.9% vs TC avg
303
Total Applications
+53.6%
Interview Lift
1480
Avg Prosecution Days
Based on 281 resolved cases, 2023–2026

Rejection Statute Breakdown

9.3%
§101 Eligibility
15.1%
§102 Novelty
36.6%
§103 Obviousness
37.1%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17222549 MEDICAL SHEATH ASSEMBLY Non-Final OA Boston Scientific Medical Device Limited
17837376 Technique For Determining Poses Of Tracked Vertebrae Non-Final OA Stryker European Operations Limited
19314173 ULTRASOUND DIAGNOSIS APPARATUS, LESION DETECTION APPARATUS, AND LESION DETECTION METHOD Non-Final OA Canon Kabushiki Kaisha
18038830 MICRODEVICE FOR ALLOWING A LOCALIZATION OF THE MICRODEVICE Non-Final OA KONINKLIJKE PHILIPS N.V.
17258403 Multimodal Neuroimaging-Based Diagnostic Systems and Methods for Detecting Tinnitus Final Rejection The Regents of the University of California
15810818 Method And System For Dose-Less Attenuation Correction For PET And SPECT Non-Final OA Siemens Medical Solutions USA, Inc.
17023726 Navigated Surgical Instrument Final Rejection Medtronic Navigation, Inc.
18541745 OVER-THE-WIRE MEDICAL TOOL POSITIONING DEVICES, SYSTEMS,AND METHODS OF USE AND MANUFACTURE Final Rejection NuVera Medical, Inc.
17408791 Device and Method for Tissue Analysis Non-Final OA Erbe Elektromedizin GmbH

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