Prosecution Insights
Last updated: October 27, 2026

Elizabeth Insler, USPTO Patent Examiner

Listed by the USPTO as INSLER, ELIZABETH

Tech Center 3700 • Art Units: 1774 1792 3774

This examiner grants 67% of resolved cases

Analysis

INSLER, ELIZABETH is a USPTO patent examiner in Tech Center 3700 and Art Unit 1774. The profile covers 547 resolved cases, with a 67.1% allowance rate and a median of 1127 days to allowance. Interview lift is 25.0%, indicating a meaningful positive association between interviews and allowance outcomes.

The leading companies are WHIRLPOOL Corporation, Haier US Appliance Solutions Inc., and Schlumberger Technology Corporation. The listed firms are PRICE HENEVELD LLP, Dority & Manning, P.A. and Haier US Appliance, and Brown, Winick, Graves, Gross, Baskerville. The data supports combining interview preparation with careful timing and claim-management planning.

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

Performance Statistics

67.1%
Allow Rate
-2.9% vs TC avg
601
Total Applications
+25.0%
Interview Lift
1127
Avg Prosecution Days
Based on 547 resolved cases, 2023–2026

Rejection Statute Breakdown

0.5%
§101 Eligibility
31.2%
§102 Novelty
38.1%
§103 Obviousness
28.3%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18783786 BRINE MIXING SYSTEMS AND METHODS Non-Final OA Schlumberger Technology Corporation
18416692 MIXING DEVICE AND A SINGLE-USE DEVICE FOR A MIXING DEVICE Non-Final OA Levitronix GmbH
18287697 Device and Method for Mixing Fluids and for Producing a Fluid Mixture Non-Final OA Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
18731380 TRUCK MIXER Non-Final OA ZF Friedrichshafen AG
18987656 Micro-Puree Machine With Plunger Air Pressure Release Mechanism Non-Final OA SharkNinja Operating LLC
18458590 CORDLESS BLENDING APPLIANCE Final Rejection WHIRLPOOL CORPORATION
18232521 FOOD PROCESSING APPLIANCE HAVING AN ELECTRICAL HUB CONNECTION Final Rejection WHIRLPOOL CORPORATION
18174914 APPLIANCE LID ASSEMBLY Non-Final OA WHIRLPOOL CORPORATION
17985524 CONTAINER DETECTION SYSTEM FOR A COUNTERTOP APPLIANCE Non-Final OA WHIRLPOOL CORPORATION
18502666 SYSTEMS FOR SUPPRESSING THERMAL RUNAWAY IN BATTERY CELLS Final Rejection GM GLOBAL TECHNOLOGY OPERATIONS LLC
18431062 WIPER ATTACHMENT LOCATING ON A STAND MIXER APPLIANCE Final Rejection Haier US Appliance Solutions, Inc.
18499419 DATA EVALUATION IN A STAND MIXER APPLIANCE Final Rejection Haier US Appliance Solutions, Inc.
18499503 ACTIVE STIRRING IN A STAND MIXER APPLIANCE Non-Final OA Haier US Appliance Solutions, Inc.
18546962 BLENDER WITH ISOLATED SOUND ENCLOSURE Final Rejection Sunbeam Products, Inc.
18039091 NON AGGREGATING MICROFLUIDIC MIXER AND METHODS THEREFOR Non-Final OA Global Life Sciences Solutions Canada ULC

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Frequently Asked Questions

What is examiner Elizabeth Insler's allowance rate?

67.1% of resolved applications examined by Elizabeth Insler were allowed (547 resolved cases), compared with 58.5% across Art Unit 1774 over the last five years.

Does an interview help with examiner Elizabeth Insler?

This examiner's interview lift is +25.0 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Elizabeth Insler take to allow a patent?

Applications allowed by Elizabeth Insler took 1,127 days on average from filing to allowance.

Which art unit does examiner Elizabeth Insler work in?

Elizabeth Insler examines applications in Art Unit 1774 in Tech Center 3700 (Medical Devices & Mechanical Engineering).

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