Prosecution Insights
Last updated: October 02, 2026

Examiner: NATH, SUMAN KUMAR

Tech Center 2800 • Art Units: 2855 2861

This examiner grants 83% of resolved cases

Analysis

Suman Kumar Nath is an examiner in Tech Center 2800 and Art Unit 2855. The examiner has 595 resolved cases. The allowance rate is 82.7 percent, which represents the frequency of grants for applications reaching a final resolution.

The interview lift is 22.5 percent. This 22.5 percent figure indicates that interviews correlate with an increased probability of allowance. When considering the 595 resolved cases, the 22.5 percent lift suggests that direct communication is a beneficial tactic for practitioners. The 82.7 percent baseline allowance rate is a key metric for evaluating the prosecution environment.

The median days to allowance is 869. This 869-day timeline reflects the duration for successful applications to reach a grant. The 869-day figure provides a benchmark for expected pendency in Art Unit 2855. Practitioners can use this 869-day median and the 595 resolved cases to inform their strategy and manage expectations for the timing of a final outcome.

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

Performance Statistics

82.7%
Allow Rate
+14.7% vs TC avg
606
Total Applications
+22.5%
Interview Lift
869
Avg Prosecution Days
Based on 595 resolved cases, 2023–2026

Rejection Statute Breakdown

3.3%
§101 Eligibility
13.7%
§102 Novelty
47.1%
§103 Obviousness
29.2%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18522340 DETERMINING BENDING STATE OF AIRCRAFT WING Non-Final OA Airbus Operations Limited
18583115 SENSOR Non-Final OA KABUSHIKI KAISHA TOSHIBA
18918344 ANOMALY DETECTION DEVICE, ANOMALY DETECTION METHOD, AND RECORDING MEDIUM Non-Final OA Panasonic Intellectual Property Corporation of America
18935180 KIRIGAMI-BASED SENSOR DEVICES AND SYSTEMS Non-Final OA The Regents of the University of Michigan
18739645 PROTECTIVE SHIELD FOR A SENSOR SUBASSEMBLY Non-Final OA Carrier Corporation
18939121 RADIATION SOURCE DEVICE Non-Final OA Infineon Technologies AG
18897897 CANTILEVERED TEST FIXTURE FOR VIBRATION TESTING Non-Final OA Honeywell Federal Manufacturing & Technologies, LLC
18479206 SYSTEM AND METHOD FOR DETECTING SUBSTRATE CHANGE USING SOUND Non-Final OA NATIONAL RESEARCH COUNCIL OF CANADA
18697770 CHARACTERIZATION APPARATUS FOR DRUG DELIVERY DEVICES OR SUBCOMPONENTS THEREOF Non-Final OA AMGEN INC.
18833599 A METHOD AND SYSTEM FOR IDENTIFYING, SORTING AND COLLECTING ANALYTES, FOR EXAMPLE CELLS, IN A SAMPLE FLUID Non-Final OA TECHNISCHE UNIVERSITEIT EINDHOVEN

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