Prosecution Insights
Last updated: October 01, 2026

Examiner: FRONDA, CHRISTIAN L

Tech Center 1600 • Art Units: 1645 1652 1656

This examiner grants 82% of resolved cases

Analysis

Examiner Christian L Fronda works in Tech Center 1600 and Art Unit 1645. There are 1361 resolved cases with an allowance rate of 82.4 percent. This percentage provides a metric for the probability of a grant. The median days to allowance is 886. This timeframe is a factor in managing patent applications for clients.

The interview lift is 14.2 percent. For the 1361 resolved cases, this lift shows the correlation between interviews and outcomes. The 886 days to allowance serves as a benchmark for pendency. Practitioners can use the 82.4 percent allowance rate and the Art Unit 1645 data to inform strategy for their applications. These metrics from Tech Center 1600 assist in prosecution planning for the office.

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

Performance Statistics

82.4%
Allow Rate
+22.4% vs TC avg
1,398
Total Applications
+14.2%
Interview Lift
886
Avg Prosecution Days
Based on 1361 resolved cases, 2023–2026

Rejection Statute Breakdown

5.2%
§101 Eligibility
7.7%
§102 Novelty
25.7%
§103 Obviousness
38.3%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18037996 SHEWANELLA ONEIDENSIS-DERIVED PROTEIN EXPRESSING MICROORGANISM AND L-AMINO ACID PRODUCING METHOD USING SAME Non-Final OA CJ CHEILJEDANG CORPORATION
19578476 R-BUTYLENE GLYCOL TOPICAL COMPOSITIONS FOR ANTI-AGING, SKIN PROTECTION AND HAIR TREATMENT Non-Final OA KetoneAid, Inc.
18678629 EXOGENOUS KETONE BLEND COMPOSITIONS FOR DELIVERY OF KETONE BODIES Final Rejection KetoneAid, Inc.
18398165 Nucleic Acid Synthesis and Sequencing Using Tethered Nucleoside Triphosphates Final Rejection The Regents of the University of California
18277444 ARTIFICIAL DNA REPLISOME AND METHODS OF USE THEREOF Non-Final OA Regents of the University of Minnesota
18886300 PLATFORM OF COMPOSABLE MAMMALIAN ELEMENTS OF TRANSCRIPTION (COMET) Non-Final OA Northwestern University
18553817 ENZYME COMPOSITION Non-Final OA DSM IP Assets B.V.
18847406 ALPHA-AMYLASE VARIANT Non-Final OA KAO CORPORATION
19019935 PROCESSES FOR PRODUCING ETHANOL Non-Final OA NOVOZYMES A/S
18956701 POLYPEPTIDES HAVING LYSOZYME ACTIVITY, POLYNUCLEOTIDES ENCODING SAME AND USES AND COMPOSITIONS THEREOF Non-Final OA Novozymes A/S
18896095 STABILIZED CELLULASE VARIANTS Non-Final OA Novozymes A/S
18578592 RECOMBINANT YEAST CELL Final Rejection DANISCO US INC.
18297346 GENE EDITING COMPONENTS, SYSTEMS, AND METHODS OF USE Final Rejection ReNAgade Therapeutics Management Inc.

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