Prosecution Insights
Last updated: October 26, 2026

Haden Matthew Ritchie, USPTO Patent Examiner

Listed by the USPTO as RITCHIE, HADEN MATTHEW

Tech Center 3700 • Art Units: 3774 3783 3791

This examiner grants 73% of resolved cases

Analysis

RITCHIE, HADEN MATTHEW is assigned to tech center 3700 and art unit 3774. The profile records 64 resolved cases, with an allowance rate of 73.4%. The median time to allowance is 1319 days, indicating that prosecution outcomes are generally reached after a substantial pendency period.

The interview lift is 33.8%, making applicant interviews an important feature of the recorded outcomes. The listed company activity includes Tandem Diabetes Care Inc., Owen Mumford Limited, and Stryker Corporation. The listed firms are Bond, Schoeneck & King, PLLC - SANOFI, Getz Balich, LLC, and Haukaas Fortius PLLC. Practitioners handling similar matters can use the interview result as a reason to prepare focused interview positions and coordinate them with claim amendments.

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

Performance Statistics

73.4%
Allow Rate
+3.4% vs TC avg
107
Total Applications
+33.8%
Interview Lift
1319
Avg Prosecution Days
Based on 64 resolved cases, 2023–2026

Rejection Statute Breakdown

0.8%
§101 Eligibility
37.7%
§102 Novelty
47.8%
§103 Obviousness
12.8%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18640302 HYPOTUBE WITH PROGRESSIVE BENDING STIFFNESS AND IMPROVED TENSILE STRENGTH Non-Final OA STRYKER EUROPEAN OPERATIONS LIMITED
17439392 SYRINGE AUXILIARY TOOL Final Rejection TAISEI KAKO CO., LTD.

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Frequently Asked Questions

What is examiner Haden Matthew Ritchie's allowance rate?

73.4% of resolved applications examined by Haden Matthew Ritchie were allowed (64 resolved cases), compared with 61.7% across Art Unit 3774 over the last five years.

Does an interview help with examiner Haden Matthew Ritchie?

This examiner's interview lift is +33.8 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Haden Matthew Ritchie take to allow a patent?

Applications allowed by Haden Matthew Ritchie took 1,319 days on average from filing to allowance.

Which art unit does examiner Haden Matthew Ritchie work in?

Haden Matthew Ritchie examines applications in Art Unit 3774 in Tech Center 3700 (Medical Devices & Mechanical Engineering).

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