Prosecution Insights
Last updated: October 26, 2026

David L Singer, USPTO Patent Examiner

Listed by the USPTO as SINGER, DAVID L

Tech Center 2800 • Art Units: 2855 2856

This examiner grants 69% of resolved cases

Analysis

SINGER, DAVID L examines in Tech Center 2800 and Art Unit 2855. The profile records 444 resolved cases, a 69.1% allowance rate, and a 42.1% interview lift. The allowance rate is favorable in the recorded matters, while the interview figure indicates that direct engagement may materially assist prosecution. Counsel should prepare interviews around the most important claim limitations, the examiner’s reading of the references, and a concrete path toward allowance.

The median time to allowance is 1034 days. The listed companies are General Electric Company, Exo Imaging Inc., and Yokogawa Electric Corporation. The leading firms are GOODWIN PROCTER LLP, CROWELL & MORING LLP, and GTC Law Group PC & Affiliates. The profile supports combining efficient written advocacy with purposeful interviews. Applicants should preserve commercially important scope while using the interview process to resolve technical or claim construction disputes that might otherwise prolong examination.

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

Performance Statistics

69.1%
Allow Rate
+1.1% vs TC avg
468
Total Applications
+42.1%
Interview Lift
1034
Avg Prosecution Days
Based on 444 resolved cases, 2023–2026

Rejection Statute Breakdown

4.5%
§101 Eligibility
13.0%
§102 Novelty
52.5%
§103 Obviousness
26.0%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18371392 ANALYSIS OF MOBILE PHASE SUPPLY FROM MOBILE PHASE CONTAINER Final Rejection Agilent Technologies, Inc.
18371405 ANALYSIS OF MOBILE PHASE SUPPLY FROM MOBILE PHASE CONTAINER Non-Final OA Agilent Technologies, Inc.
18678918 ACOUSTIC INSPECTION DEVICE AND METHODS OF OPERATION Non-Final OA General Electric Company
18839674 PRESSURE SENSOR ARRANGEMENT AND METHOD OF MANUFACTURING A PRESSURE SENSOR ARRANGEMENT Non-Final OA TDK Electronics AG
18751986 ULTRASONIC IMAGING DEVICE WITH PROGRAMMABLE ANATOMY AND FLOW IMAGING Non-Final OA Exo Imaging, Inc.
18938818 COMPACT LIQUID CHROMATOGRAPHY SYSTEM PROVIDING THERMAL MANAGEMENT AND DETECTION Non-Final OA Waters Technologies Corporation

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Frequently Asked Questions

What is examiner David L Singer's allowance rate?

69.1% of resolved applications examined by David L Singer were allowed (444 resolved cases), compared with 76.8% across Art Unit 2855 over the last five years.

Does an interview help with examiner David L Singer?

This examiner's interview lift is +42.1 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 L Singer take to allow a patent?

Applications allowed by David L Singer took 1,034 days on average from filing to allowance.

Which art unit does examiner David L Singer work in?

David L Singer examines applications in Art Unit 2855 in Tech Center 2800 (Semiconductors, Circuits & Optics).

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