Prosecution Insights
Last updated: October 04, 2026

Examiner: KESSEL, MARIS R

Tech Center 1700 • Art Units: 1699 1758 1759 1795 1796

This examiner grants 50% of resolved cases

Analysis

Maris R Kessel is an examiner in Tech Center 1700 and Art Unit 1699. The data shows 439 resolved cases for this examiner. The allowance rate pct is 50.3. This 50.3 allowance rate pct provides a measure of the outcomes for applications on her docket. The 439 resolved cases are a foundation for this analysis.

The interview lift pct is 50.7. This 50.7 interview lift pct indicates the correlation between conducting an interview and the probability of an allowance. Practitioners can use the 50.7 figure when deciding whether to engage in verbal advocacy with the examiner. This metric is a component of the data for Tech Center 1700.

The median days to allowance is 1380. This 1380 median days to allowance represents the time required for an application to reach a grant. The 1380 figure is a timeline for the prosecution process from filing to resolution. These metrics provide a view of the examiner's history in Art Unit 1699.

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

Performance Statistics

50.3%
Allow Rate
-14.7% vs TC avg
445
Total Applications
+50.7%
Interview Lift
1380
Avg Prosecution Days
Based on 439 resolved cases, 2023–2026

Rejection Statute Breakdown

2.0%
§101 Eligibility
15.6%
§102 Novelty
45.4%
§103 Obviousness
31.9%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18487608 INDIUM OXIDE NANORODS, METHODS FOR PREPARING AND USING SAME Non-Final OA YANGTZE DELTA REGION INSTITUTE (HUZHOU), UNIVERSITY OF ELECTRONIC SCIENCE AND TECHNOLOGY OF CHINA

Facing This Examiner?

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

Build Your Strategy

Who Appears Before This Examiner

Top companies before this examiner

Law firms appearing most often

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