Prosecution Insights
Last updated: October 27, 2026

Dru M Parries, USPTO Patent Examiner

Listed by the USPTO as PARRIES, DRU M

Tech Center 3600 • Art Units: 2836 3655

This examiner grants 63% of resolved cases

Analysis

Examiner Dru M. Parries serves in Tech Center 3600 and Art Unit 2836. The data shows 631 resolved cases with an allowance rate of 62.9 percent. This allowance rate is higher than the interview lift of 13.4 percent. The median days to allowance for these cases is 1194.

The 62.9 percent allowance rate provides a baseline for the 631 resolved cases managed by this examiner. An interview lift of 13.4 percent indicates the impact of direct communication on the probability of reaching a grant. Applicants should evaluate the 1194 median days to allowance when planning their prosecution timelines in this art unit.

Top companies in this examiner's portfolio include Safran S.A., Samsung Electronics Co., Ltd., and Toyota Motor Corporation. Representation is provided by firms such as AMSTER, ROTHSTEIN & EBENSTEIN LLP, BAKER BOTTS L.L.P., and BANNER & WITCOFF, LTD. These firms navigate the 62.9 percent allowance rate and the 1194-day median pendency.

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

Performance Statistics

62.9%
Allow Rate
+10.9% vs TC avg
671
Total Applications
+13.4%
Interview Lift
1194
Avg Prosecution Days
Based on 631 resolved cases, 2023–2026

Rejection Statute Breakdown

0.6%
§101 Eligibility
24.1%
§102 Novelty
67.2%
§103 Obviousness
7.0%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18881344 ELECTRICAL DISTRIBUTION METHOD AND SYSTEM, CONFIGURED TO SUPPLY ELECTRIC MOTORS OF AN AIRCRAFT FROM AT LEAST ONE ELECTRICAL SOURCE Non-Final OA SAFRAN ELECTRICAL & POWER
18208210 WIRELESS POWER TRANSMITTER AND METHOD FOR CONTROLLING WIRELESS POWER TRANSMITTER Non-Final OA SAMSUNG ELECTRONICS CO., LTD.
19334477 POWER SUPPLY SYSTEM Non-Final OA TOYOTA JIDOSHA KABUSHIKI KAISHA
18184660 SYSTEM, COMPUTER-READABLE STORAGE MEDIUM, AND METHOD Final Rejection HONDA MOTOR CO.,LTD.
18638345 METHODS AND PROCESSES FOR POWER TRANSMISSION Non-Final OA SAUDI ARABIAN OIL COMPANY
18714560 Method for Controlling an On-Board Power Supply System for a Motor Vehicle, On-Board Power Supply System and Motor Vehicle Final Rejection Bayerische Motoren Werke Aktiengesellschaft
19227935 Voltage Conversion Circuit and Portable Power Source Final Rejection Anker Innovations Technology Co., Ltd.
18489968 POWER SYSTEM FOR WORK MACHINES Non-Final OA Caterpillar Inc.
18518016 SYSTEMS AND METHODS FOR STRANDED-LESS POWER DATACENTERS Final Rejection Microsoft Technology Licensing, LLC
19132823 POWER SUPPLY SWITCHING DEVICE Final Rejection OMRON Corporation
19110051 ELECTRIC-POWER MANAGEMENT ADMINISTRATION SYSTEM, ELECTRIC-POWER MANAGEMENT ADMINISTRATION DEVICE, AND ELECTRIC-POWER MANAGEMENT ADMINISTRATION METHOD Final Rejection HITACHI, LTD.
18748190 SYSTEM AND METHOD FOR ENERGY CONVERSION Final Rejection Transportation IP Holdings, LLC
18645703 CONTROL SYSTEM FOR ELECTRIC VEHICLES Non-Final OA Transportation IP Holdings, LLC
18624060 POWER SUPPLY SYSTEM Non-Final OA YAZAKI CORPORATION
17950789 SYSTEMS, DEVICES, AND METHODS FOR MODULE-BASED CASCADED ENERGY SYSTEMS CONFIGURED TO INTERFACE WITH RENEWABLE ENERGY SOURCES Final Rejection TAE Technologies, Inc.
18573722 POWER SUPPLY DEVICE AND MOTORIZED DEVICE Final Rejection MINEBEA MITSUMI Inc.

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Frequently Asked Questions

What is examiner Dru M Parries's allowance rate?

62.9% of resolved applications examined by Dru M Parries were allowed (631 resolved cases), compared with 66.2% across Art Unit 2836 over the last five years.

Does an interview help with examiner Dru M Parries?

This examiner's interview lift is +13.4 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Dru M Parries take to allow a patent?

Applications allowed by Dru M Parries took 1,194 days on average from filing to allowance.

Which art unit does examiner Dru M Parries work in?

Dru M Parries examines applications in Art Unit 2836 in Tech Center 3600 (Transportation, E-Commerce & Mechanical Systems).

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