Prosecution Insights
Last updated: October 26, 2026

William Spieler, USPTO Patent Examiner

Listed by the USPTO as SPIELER, WILLIAM

Tech Center 2100 • Art Units: 2159 2169

This examiner grants 74% of resolved cases

Analysis

SPIELER, WILLIAM works in USPTO Technology Center 2100, Art Unit 2159. The profile includes 944 resolved cases and an allowance rate of 73.6%. The median time to allowance is 1050 days, while interview lift is 9.7%. The allowance rate is therefore the dominant signal in the available data, with interviews showing a smaller associated improvement.

The principal companies are Samsung Electronics Co., Ltd., Huawei Technologies Co., Ltd., and Pure Storage Inc. The leading firms are CKC & Partners Co., LLC, Fogarty LLP, and HOFFMAN WARNICK LLC. Applicants can use the large resolved-case base to support a relatively stable assessment of prosecution outcomes, while still accounting for the extended median path to allowance.

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

Performance Statistics

73.6%
Allow Rate
+18.6% vs TC avg
983
Total Applications
+9.7%
Interview Lift
1050
Avg Prosecution Days
Based on 944 resolved cases, 2023–2026

Rejection Statute Breakdown

22.5%
§101 Eligibility
17.0%
§102 Novelty
32.7%
§103 Obviousness
17.6%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18401074 LEARNING TO COMBINE EXPLICIT DIVERSITY CONDITIONS FOR EFFECTIVE QUESTION ANSWER GENERATION Final Rejection Samsung Electronics Co., Ltd.
19233437 Automatic Error Recovery For Parser Final Rejection Oracle International Corporation
18672254 NEURAL NETWORK MODEL PROCESSING METHOD AND APPARATUS Final Rejection HUAWEI TECHNOLOGIES CO., LTD.
18583149 SYSTEM AND METHOD TRANSFORMING VISUAL COMMONSENSE REASONING AS COMMONSENSE REASONING AND VISUAL RECOGNITION WITH LARGE LANGUAGE MODELS Non-Final OA Honda Motor Co., Ltd.
19237174 Coordinating Snapshot Replication Using Metadata Mapping Final Rejection PURE STORAGE, INC.
18299651 TRAINING MACHINE LEARNING SYSTEMS USING CUSTOM FEATURE ENGINEERING Non-Final OA Fujitsu Limited
19151677 PARAMETER ACQUISITION SYSTEM Non-Final OA NTT DOCOMO, INC.
17936867 RUNTIME CONTROL OF ARTIFICIAL INTELLIGENCE (AI) MODEL PARAMETERS IN A HETEROGENEOUS COMPUTING PLATFORM Non-Final OA Dell Products, L.P.

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Frequently Asked Questions

What is examiner William Spieler's allowance rate?

73.6% of resolved applications examined by William Spieler were allowed (944 resolved cases), compared with 57.3% across Art Unit 2159 over the last five years.

Does an interview help with examiner William Spieler?

This examiner's interview lift is +9.7 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner William Spieler take to allow a patent?

Applications allowed by William Spieler took 1,050 days on average from filing to allowance.

Which art unit does examiner William Spieler work in?

William Spieler examines applications in Art Unit 2159 in Tech Center 2100 (Computing & Software).

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