Prosecution Insights
Last updated: October 02, 2026

Examiner: KIEFER, DALTON EDWARD

Tech Center 1600 • Art Units: 1635 1652 1674

This examiner grants 83% of resolved cases

Analysis

Dalton Edward Kiefer is an examiner in Tech Center 1600 and Art Unit 1635, with 6 resolved cases. The allowance rate is 83.3 percent, and the median days to allowance is 1120. These figures indicate a high probability of success within a standard timeframe, with five out of six applications reaching a grant in this small sample.

The interview lift is 0.0 percent, which means that interviews have not statistically changed the allowance rate in the cases handled so far. Given the high 83.3 percent baseline allowance rate, applicants may find that written prosecution is sufficient to secure a grant. However, with only 6 cases, this data should be interpreted with caution as the examiner's profile continues to develop.

Strategy for this examiner should focus on the 1120 median days to allowance as a baseline for planning. The 83.3 percent allowance rate is very encouraging, and while the 0.0 percent interview lift suggests no additional benefit, interviews may still be useful for clarifying technical points. Practitioners should focus on high-quality initial filings to take advantage of the high probability of a grant.

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

Performance Statistics

83.3%
Allow Rate
+23.3% vs TC avg
23
Total Applications
+0.0%
Interview Lift
1120
Avg Prosecution Days
Based on 6 resolved cases, 2023–2026

Rejection Statute Breakdown

0.8%
§101 Eligibility
29.3%
§102 Novelty
22.0%
§103 Obviousness
36.6%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18025050 A RECOMBINANT MICROORGANISM FOR PRODUCING L-GLUTAMIC ACID AND A METHOD FOR PRODUCING L-GLUTAMIC ACID USING THE SAME Final Rejection CJ CHEILJEDANG CORPORATION
18708273 MATERIAL AND METHOD FOR PERFORMING A SEPARATION BASED ON BORON CLUSTERS Non-Final OA MERCK PATENT GMBH
18572490 POLYNUCLEOTIDES ENCODING URIDINE DIPHOSPHATE GLYCOSYLTRANSFERASE 1 FAMILY, POLYPEPTIDE A1 FOR THE TREATMENT OF CRIGLER-NAJJAR SYNDROME Non-Final OA ModernaTX, Inc.
18571882 COMPOSITION WITH IMPROVED MOISTURE MANAGEMENT PERFORMANCE Non-Final OA HENKEL AG & CO. KGAA
18791223 BASE EDITORS AND USES THEREOF Non-Final OA President and Fellows of Harvard College
18724369 POLYPEPTIDE AND METHOD FOR PRODUCING AMINO ACID USING SAME Non-Final OA CHUGAI SEIYAKU KABUSHIKI KAISHA
18819967 METHODS AND COMPOSITIONS TO REGULATE MAPT SPLICING FOR MODELING AND TREATMENT OF TAUOPATHIES Non-Final OA THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK

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