Prosecution Insights
Last updated: October 25, 2026

Aileen Baker Felton, USPTO Patent Examiner

Listed by the USPTO as FELTON, AILEEN BAKER

Tech Center 1700 • Art Units: 1731 1734 1735 1793

This examiner grants 52% of resolved cases

Analysis

FELTON, AILEEN BAKER is a USPTO patent examiner in Tech Center 1700 and Art Unit 1731. The profile includes 451 resolved cases, a 51.7% allowance rate, and a 16.7% interview lift. Median time to allowance is 1623 days.

Joyson Safety Systems Acquisition LLC, Daicel Corporation, and Lawrence Livermore National Security LLC are the leading companies represented. Meunier Carlin & Curfman LLC, BIRCH STEWART KOLASCH & BIRCH, LLP, and DILWORTH IP, LLC are the leading firms. The allowance figure indicates mixed recorded outcomes, while the median timing calls for early attention to fallback positions, response sequencing, and continuation planning.

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

Performance Statistics

51.7%
Allow Rate
-13.3% vs TC avg
500
Total Applications
+16.7%
Interview Lift
1623
Avg Prosecution Days
Based on 451 resolved cases, 2023–2026

Rejection Statute Breakdown

1.1%
§101 Eligibility
16.4%
§102 Novelty
64.6%
§103 Obviousness
16.6%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18761771 Multi-Purpose Putty Non-Final OA Individual inventor
19471036 GAS GENERATING COMPOSITIONS Non-Final OA JOYSON SAFETY SYSTEMS ACQUISITION LLC
18751762 METHOD OF FORMING A GAS GENERANT Final Rejection Joyson Safety Systems Acquisition LLC
18148637 GAS GENERATING COMPOSITIONS AND METHODS OF USING Non-Final OA JOYSON SAFETY SYSTEMS ACQUISITION LLC
18687632 SYNTHESIZING AN ORGANIC HIGH EXPLOSIVE IN A FLOW REACTOR Non-Final OA BAE SYSTEMS plc
16986596 WATERLESS ELECTRICALLY OPERATED PROPELLANT Non-Final OA RAYTHEON COMPANY
18437519 THROTTLEABLE SOLID PROPELLANT SYSTEM AND METHOD Non-Final OA Purdue Research Foundation
18029780 GAS-GENERATING AGENT COMPOSITION Non-Final OA DAICEL CORPORATION
18029710 GAS-FORMING AGENT COMPOSITION Final Rejection DAICEL CORPORATION
18841248 SYSTEM AND METHODS FOR ADDITIVELY MANUFACTURING ENERGETIC PARTICLES Non-Final OA Oqab Dietrich Induction Inc.
19121532 COMBUSTIBLE PROPELLANT CHARGE SLEEVE Final Rejection Nitrochemie Aschau GmbH
18904792 ADDITIVE MANUFACTURABLE ENERGETIC MATERIAL, ARTICLE AND METHOD OF MANUFACTURING Non-Final OA Ensign-Bickford Aerospace & Defense Company
18343137 METHOD AND SYSTEM FOR UNZIPPING POLYMERS FOR ENHANCED ENERGY RELEASE Non-Final OA The Board of Trustees of the University of Illinois
17995339 Material and Generator for Generating Hydrogen Gas Final Rejection Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO
17326863 DIAL-A-DRIVE EXPLOSIVE FORMULATIONS Non-Final OA LAWRENCE LIVERMORE NATIONAL SECURITY, LLC
18292522 STABILIZED PYROPHORIC MATERIALS FOR ONBOARD HYDROGEN GENERATION BY HYDROLYSIS AND RELATED METHODS Non-Final OA THE TRUSTEES OF THE UNIVERSITY OF PENNSYLVANIA
18280520 EMULSION-TYPE EXPLOSIVES OF THE WATER-IN-OIL TYPE Non-Final OA Yara International ASA
18280526 EMULSION-TYPE EXPLOSIVES OF THE WATER-IN-OIL TYPE Non-Final OA Yara International ASA
18868075 COMPOSITE POWDER CONTAINING PRIMARY NANOPARTICLES OF ALUMINUM OR ALUMINUM OXIDE Non-Final OA Helicon Chemical Company
17740520 TRI-REGIME COMPOSITE SOLID PROPELLANT Final Rejection HELICON CHEMICAL COMPANY
18863314 PROPELLANT COMPOSITION WITHOUT ACTIVATED COPPER CHROMITE HAVING A HIGH BURN RATE AND ITS USE THEREOF IN PYROGEN IGNITERS FOR LARGE ROCKET MOTORS Final Rejection CHAIRMAN, DEFENCE RESEARCH & DEVELOPMENT ORGANISATION (DRDO)
18696812 EMULSION EXPLOSIVE COMPOSITION FOR BOOSTER OF BULK EXPLOSIVE Non-Final OA HANWHA CORPORATION
18711667 IGNITION AGENT AND IGNITER INCLUDING THE SAME Non-Final OA NIPPON KAYAKU KABUSHIKI KAISHA
18532759 CHEMICAL INHIBITORS FOR HIGH TEMPERATURE AND REACTIVE GROUND Non-Final OA The University of Sydney
18636257 THERMOPLASTIC COMPOSITE SOLID PROPELLANT AND PREPARATION METHOD THEREFOR Non-Final OA HUBEI INSTITUTE OF AEROSPACE CHEMICAL TECHNOLOGY
18717599 HYBRID ROCKET ENGINE FUEL GRAINS WITH COMPOSITIONAL VARIATIONS Final Rejection FIREHAWK AEROSPACE, INC.
17700781 PROPELLANT COMPOSITIONS WITH METAL NANOPARTICLES Final Rejection EVOQ NANO, INC.
18602493 CHEMICAL HEAT SOURCES FOR USE IN DOWN-HOLE OPERATIONS Non-Final OA BiSN Tec Ltd.
18416677 Lead-free Ballistic Modifier for Rocket Motor Propellants Final Rejection USA AS REPRESENTED BY SECRETARY OF THE ARMY
18543210 BONDED THERMITE COMPOSITION Non-Final OA Anasphere, Inc.

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Frequently Asked Questions

What is examiner Aileen Baker Felton's allowance rate?

51.7% of resolved applications examined by Aileen Baker Felton were allowed (451 resolved cases), compared with 55.4% across Art Unit 1731 over the last five years.

Does an interview help with examiner Aileen Baker Felton?

This examiner's interview lift is +16.7 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Aileen Baker Felton take to allow a patent?

Applications allowed by Aileen Baker Felton took 1,623 days on average from filing to allowance.

Which art unit does examiner Aileen Baker Felton work in?

Aileen Baker Felton examines applications in Art Unit 1731 in Tech Center 1700 (Chemistry & Materials).

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