Prosecution Insights
Last updated: October 26, 2026

Thomas Ray Knief, USPTO Patent Examiner

Listed by the USPTO as KNIEF, THOMAS RAY

Tech Center 2800 • Art Units: 2853

This examiner grants 89% of resolved cases

Analysis

Thomas Ray Knief works in Tech Center 2800 and Art Unit 2853. The profile covers 55 resolved cases, with an 89.1% allowance rate and a median of 834 days to allowance. The interview lift is 12.0%, indicating a positive association between interviews and allowance in this dataset.

The listed companies are Kyocera Document Solutions Inc., Seiko Epson Corporation, and Canon Inc. The listed firms are Alleman Hall LLP, HARNESS, DICKEY & PIERCE, P.L.C., and WORKMAN NYDEGGER. The limited resolved-case record should inform how broadly practitioners apply the 89.1% allowance rate. The 12.0% interview lift supports considering examiner contact, while the 834-day median gives a direct basis for timing discussions.

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

Performance Statistics

89.1%
Allow Rate
+21.1% vs TC avg
73
Total Applications
+12.0%
Interview Lift
834
Avg Prosecution Days
Based on 55 resolved cases, 2023–2026

Rejection Statute Breakdown

2.2%
§101 Eligibility
35.5%
§102 Novelty
41.0%
§103 Obviousness
20.8%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18740278 INK JET RECORDING METHOD, INK JET RECORDING DEVICE AND AQUEOUS INK Final Rejection CANON KABUSHIKI KAISHA
19078746 PRINTING DEVICE Non-Final OA SEIKO EPSON CORPORATION
19017984 PRINTING APPARATUS Non-Final OA SEIKO EPSON CORPORATION
19186165 INKJET RECORDING APPARATUS Non-Final OA KYOCERA Document Solutions Inc.
19078699 IMAGE FORMING APPARATUS CAPABLE OF SUPPRESSING GENERATION OF CURLS IN SHEETS, AND IMAGE FORMING METHOD Non-Final OA KYOCERA Document Solutions Inc.
18888788 INKJET IMAGE FORMING APPARATUS Final Rejection KYOCERA Document Solutions Inc.
18810826 MAINTENANCE DEVICE AND INKJET RECORDING APPARATUS Final Rejection KYOCERA Document Solutions Inc.
19039264 COLOR IMAGE FORMING APPARATUS Non-Final OA RICOH COMPANY, LTD.

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Frequently Asked Questions

What is examiner Thomas Ray Knief's allowance rate?

89.1% of resolved applications examined by Thomas Ray Knief were allowed (55 resolved cases), compared with 72.7% across Art Unit 2853 over the last five years.

Does an interview help with examiner Thomas Ray Knief?

This examiner's interview lift is +12.0 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Thomas Ray Knief take to allow a patent?

Applications allowed by Thomas Ray Knief took 834 days on average from filing to allowance.

Which art unit does examiner Thomas Ray Knief work in?

Thomas Ray Knief examines applications in Art Unit 2853 in Tech Center 2800 (Semiconductors, Circuits & Optics).

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