Prosecution Insights
Last updated: October 26, 2026

Matthew William Jellett, USPTO Patent Examiner

Listed by the USPTO as JELLETT, MATTHEW WILLIAM

Tech Center 4100 • Art Units: 2855 3753 4100

This examiner grants 80% of resolved cases

Analysis

JELLETT, MATTHEW WILLIAM is assigned to tech center 4100 and art unit 2855. The profile records 1102 resolved cases, with an 80.1% allowance rate and a median of 862 days to allowance. Its 17.3% interview lift indicates a separate interview-associated outcome measure. Applicants can use the figures to set timing expectations and determine whether direct examiner discussion should supplement written claim amendments.

The principal companies are Fox Factory Inc., Halliburton Energy Services Inc., and Samsung Electronics Co., Ltd. The listed firms are HARNESS, DICKEY & PIERCE, P.L.C., Apex Attorneys at Law, LLP, and HODGSON RUSS LLP. Their prosecution histories may help counsel study mechanical, energy, and electronics claim practice in art unit 2855.

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

Performance Statistics

80.1%
Allow Rate
+20.1% vs TC avg
1,144
Total Applications
+17.3%
Interview Lift
862
Avg Prosecution Days
Based on 1102 resolved cases, 2023–2026

Rejection Statute Breakdown

0.3%
§101 Eligibility
17.7%
§102 Novelty
48.3%
§103 Obviousness
30.7%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19211890 SERVICE VALVE FOR AIR CONDITIONER, WHICH CAN PREVENT SPINDLE WEAR Non-Final OA Samsung Electronics Co., Ltd.
19187195 DOWNHOLE TOOL, WELL SYSTEM, AND METHOD EMPLOYING A SENSOR POSITIONED PROXIMATE A FLOW CONTROL DEVICE, THE SENSOR CONFIGURED TO SENSE FOR A CHANGE IN NOISE EMANATING FROM THE FLOW CONTROL DEVICE Non-Final OA Halliburton Energy Services, Inc.
18719047 IMPROVED THERMAL AND ELECTRICAL INTERFACE BETWEEN PARTS IN AN ETCH CHAMBER Non-Final OA LAM RESEARCH CORPORATION
18835249 SEALING SYSTEM BETWEEN A MANIFOLD AND A LIQUID CONTAINER Final Rejection Siemens Healthcare Diagnostics Inc.
18493982 FIELD-DEVICE COUPLING WITH TWO COUPLING ORIENTATIONS Non-Final OA BELIMO HOLDING AG
18984643 GAS DELIVERY SYSTEM Final Rejection Applied Materials, Inc.
19142674 FLOW PATH SWITCHING VALVE Non-Final OA FUJIKOKI CORPORATION
19071093 FLAME ARRESTOR SCREW Final Rejection Woodward, Inc.

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Frequently Asked Questions

What is examiner Matthew William Jellett's allowance rate?

80.1% of resolved applications examined by Matthew William Jellett were allowed (1,102 resolved cases), compared with 76.8% across Art Unit 2855 over the last five years.

Does an interview help with examiner Matthew William Jellett?

This examiner's interview lift is +17.3 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Matthew William Jellett take to allow a patent?

Applications allowed by Matthew William Jellett took 862 days on average from filing to allowance.

Which art unit does examiner Matthew William Jellett work in?

Matthew William Jellett examines applications in Art Unit 2855 in Tech Center 4100.

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