Prosecution Insights
Last updated: October 27, 2026

David R. Morris, USPTO Patent Examiner

Listed by the USPTO as MORRIS, DAVID R.

Tech Center 4100 • Art Units: 3616 3631 3659 4100

This examiner grants 82% of resolved cases

Analysis

MORRIS, DAVID R. handles applications in Tech Center 4100 and Art Unit 3616. The record includes 533 resolved cases, with an 82.0% allowance rate and a median of 755 days to allowance. Interviews correspond to a 14.2% lift in allowance outcomes.

The principal companies are Robert Bosch GmbH, Volvo Group, and Kia Corporation. The leading firms are NORTON ROSE FULBRIGHT US LLP, K&L Gates LLP - Wabtec, and Brooks Kushman P.C. The allowance rate and median timing provide a useful framework for evaluating expected prosecution effort in this docket.

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

Performance Statistics

82.0%
Allow Rate
+22.0% vs TC avg
564
Total Applications
+14.2%
Interview Lift
755
Avg Prosecution Days
Based on 533 resolved cases, 2023–2026

Rejection Statute Breakdown

1.7%
§101 Eligibility
32.3%
§102 Novelty
32.4%
§103 Obviousness
32.3%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18863449 BRAKE UNIT FOR MOUNTING ON A WHEEL OF A MOTOR VEHICLE Non-Final OA Robert Bosch GmbH
18551237 ELECTROHYDRAULIC DUAL-CIRCUIT POWER BRAKE SYSTEM Final Rejection Robert Bosch GmbH
18462615 ELECTRONICALLY SLIP-CONTROLLABLE POWER BRAKE SYSTEM Non-Final OA Robert Bosch GmbH
18582761 HYDRAULICALLY BRAKEABLE ELECTRICAL MACHINE Final Rejection VOLVO TRUCK CORPORATION
18618215 BRAKING CONTROL APPARATUS AND BRAKING CONTROL METHOD Non-Final OA KIA CORPORATION
18616243 BALL SCREW DRIVE, METHOD FOR PRODUCING A BALL SCREW DRIVE, AND VEHICLE BRAKE Final Rejection ZF Active Safety GmbH
18683079 RETURN SPRING AND DISC BRAKE Non-Final OA Hitachi Astemo, Ltd.

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Frequently Asked Questions

What is examiner David R. Morris's allowance rate?

82.0% of resolved applications examined by David R. Morris were allowed (533 resolved cases), compared with 73.2% across Art Unit 3616 over the last five years.

Does an interview help with examiner David R. Morris?

This examiner's interview lift is +14.2 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner David R. Morris take to allow a patent?

Applications allowed by David R. Morris took 755 days on average from filing to allowance.

Which art unit does examiner David R. Morris work in?

David R. Morris examines applications in Art Unit 3616 in Tech Center 4100.

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