Prosecution Insights
Last updated: October 02, 2026

Examiner: WEILAND, HANS R.

Tech Center 3700 • Art Units: 1776 3744 3763

This examiner grants 56% of resolved cases

Analysis

Hans R. Weiland is an examiner in Tech Center 3700, specifically Art Unit 1776. His historical data includes 531 resolved cases. The allowance rate for Weiland is 55.7 percent, which indicates a balanced prosecution environment. This rate suggests that slightly more than half of the applications result in a patent grant, providing a moderate expectation of success.

The interview lift for Weiland is 13.3 percent. This positive lift indicates that direct communication is a beneficial strategy for further increasing the probability of success. Even with a 55.7 percent baseline allowance rate, the 13.3 percent lift suggests that interviews are a productive way to resolve any remaining issues. Practitioners should consider this a useful tactical option for the 531 resolved cases analyzed.

The median days to allowance is 1119. This figure represents the typical time required to reach a successful resolution. The combination of an 1119-day median and a 55.7 percent allowance rate suggests a standard pendency for applications in Art Unit 1776. The 13.3 percent interview lift provides a clear path for practitioners looking to navigate the prosecution process more effectively before Weiland.

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

Performance Statistics

55.7%
Allow Rate
-14.3% vs TC avg
548
Total Applications
+13.3%
Interview Lift
1119
Avg Prosecution Days
Based on 531 resolved cases, 2023–2026

Rejection Statute Breakdown

0.4%
§101 Eligibility
22.0%
§102 Novelty
44.6%
§103 Obviousness
30.6%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19011902 HEAT EXCHANGER Non-Final OA DAIKIN INDUSTRIES, LTD.
18881991 DEVICE FOR THERMAL REGULATION, IN PARTICULAR FOR COOLING Non-Final OA VALEO SYSTEMES THERMIQUES
18856835 HEAT TRANSFER PIPE, HEAT EXCHANGER, PIPE EXPANDING TOOL, PIPE EXPANDING DEVICE, METHOD FOR CONNECTING HEAT TRANSFER PIPE AND PIPE, AND METHOD FOR MANUFACTURING HEAT EXCHANGER Non-Final OA Mitsubishi Electric Corporation
18767209 THERMAL DIFFUSION DEVICE AND ELECTRONIC APPARATUS Non-Final OA Murata Manufacturing Co., Ltd.
18339445 SHELL AND TUBE ISOLATION IN HEAT EXCHANGER Final Rejection Carrier Corporation
16972097 METHOD OF HEAT TRANSFER AND ASSOCIATED DEVICE Final Rejection ArcelorMittal
19058151 HEAT EXCHANGER Non-Final OA NGK INSULATORS, LTD.
18793162 HEAT EXCHANGER FOR UVO CLEANING SYSTEM Final Rejection KLA CORPORATION

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