Prosecution Insights
Last updated: October 26, 2026

Nathan C Zollinger, USPTO Patent Examiner

Listed by the USPTO as ZOLLINGER, NATHAN C

Tech Center 3700 • Art Units: 3616 3671 3745 3746

This examiner grants 70% of resolved cases

Analysis

ZOLLINGER, NATHAN C is assigned to Tech Center 3700 and Art Unit 3616. The record includes 882 resolved cases and an allowance rate of 69.6%. The median time to allowance is 1035 days, giving applicants a substantial reference for prosecution timing and portfolio scheduling.

The interview lift is 40.0%, indicating a strong association with allowance outcomes. An interview may be an effective setting for narrowing the issues, provided that the resulting distinctions are supported in the written record. The represented organizations are Robert Bosch GmbH, Actasys Inc., and West Virginia University Board Of Governors On Behaft Of West Virginia University. The listed firms are THOMAS | HORSTEMEYER, LLP, CANTOR COLBURN LLP, and CROWELL & MORING LLP.

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

Performance Statistics

69.6%
Allow Rate
At TC average
921
Total Applications
+40.0%
Interview Lift
1035
Avg Prosecution Days
Based on 882 resolved cases, 2023–2026

Rejection Statute Breakdown

0.7%
§101 Eligibility
23.4%
§102 Novelty
51.1%
§103 Obviousness
22.1%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18722033 COMPONENT FOR A LIQUID FILTER Non-Final OA Robert Bosch GmbH
19442066 SCROLL COMPRESSOR Non-Final OA KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
18224181 RECIRCULATION BLOWER Non-Final OA BorgWarner Inc.
18543358 BEND RESTRICTOR Final Rejection NEXANS
18571424 Hydraulic Accumulator Final Rejection Hydac Technology GmbH
18939516 CIRCULATING WATER PUMP FOR DATA CENTER COMPUTER ROOM Non-Final OA Hebei Qinhuai Data Co., Limited.

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Frequently Asked Questions

What is examiner Nathan C Zollinger's allowance rate?

69.6% of resolved applications examined by Nathan C Zollinger were allowed (882 resolved cases), compared with 73.2% across Art Unit 3616 over the last five years.

Does an interview help with examiner Nathan C Zollinger?

This examiner's interview lift is +40.0 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Nathan C Zollinger take to allow a patent?

Applications allowed by Nathan C Zollinger took 1,035 days on average from filing to allowance.

Which art unit does examiner Nathan C Zollinger work in?

Nathan C Zollinger examines applications in Art Unit 3616 in Tech Center 3700 (Medical Devices & Mechanical Engineering).

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