Prosecution Insights
Last updated: October 02, 2026

Examiner: FIEBIG, RUSSELL G

Tech Center 1700 • Art Units: 1628 1651 1655 1663 1792

This examiner grants 63% of resolved cases

Analysis

Russell G. Fiebig works in Tech Center 1700 and Art Unit 1628. The examiner has resolved 898 cases with an allowance rate of 62.6 percent. The median days to allowance is 1111.

The interview lift is 25.0 percent, indicating that interviews are a reliable method for advancing prosecution. This lift is consistent across the 898 cases resolved. Practitioners should expect a median timeline of 1111 days when working in Art Unit 1628.

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

Performance Statistics

62.6%
Allow Rate
-2.4% vs TC avg
942
Total Applications
+25.0%
Interview Lift
1111
Avg Prosecution Days
Based on 898 resolved cases, 2023–2026

Rejection Statute Breakdown

11.6%
§101 Eligibility
8.0%
§102 Novelty
41.8%
§103 Obviousness
29.9%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18356947 Mineral Oil And Water-Based Pesticide Formulations Non-Final OA Henkel AG & Co. KGaA
18010427 METHODS FOR MODULATING TLR4 SIGNALING Non-Final OA President and Fellows of Harvard College
18773825 PURIFICATION OF TOBACCO-DERIVED PROTEIN COMPOSITIONS Final Rejection R.J. Reynolds Tobacco Company
18805952 BROCCOLI EXTRACT, NUTRACEUTICAL, AND METHODS OF TREATING INFLAMMATION AND CANCER Non-Final OA THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOIS
18681862 COMPOSITION FOR PREVENTING OR AMELIORATING LOCOMOTIVE SYNDROME Final Rejection DIC Corporation
18596671 CANNABIS PRODUCTION SYSTEMS AND METHODS Final Rejection INSECTERGY, LLC.
18597621 HYDROXYUREA TO ENHANCE SPERM CELLS Final Rejection Meharry Medical College
18560767 ANTIOXIDANT COSMETIC COMPLEX, COSMETIC COMPOSITION, USE AND METHOD FOR COSMETIC TREATMENT Non-Final OA Natura Cosméticos S.A.
18261733 MICROALGAE CALCAREOUS COMPOSITIONS AND USES THEREOF Final Rejection MIYOSHI EUROPE

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