Inventor

ALAN H. EPSTEIN

Inventor

Overview

6→

Patents

2021–2025

Patent span

Mechanical engineering

Primary field (CPC F)

Patents· 6 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

F01Dprimary

F01DNon-positive displacement machines or engines, e.g. steam turbines12%

F02CGas-turbine plants12%

F05DIndexing scheme for aspects relating to non-positive-displacement machines or engines, gas-turbines or jet-propulsion plants12%

B64DEquipment for fitting in or to aircraft8%

B01DSeparation6%

B03CMagnetic or electrostatic separation of solid materials from solid materials or fluids6%

F02KJet-propulsion plants6%

F17CVessels for containing or storing compressed, liquefied or solidified gases6%

F25BRefrigeration machines, plants or systems6%

F25JLiquefaction, solidification or separation of gases or gaseous or liquefied gaseous mixtures by pressure and cold treatment or by bringing them into the supercritical state6%

PatentTitleYear

12,358,630Cryogenic cooling system for an aircraft2025 12,351,318Cryogenic cooling system for an aircraft2025 11,542,016Cryogenic cooling system for an aircraft2023 11,378,061Electric rotor dynamics damping2022 11,319,963Compressor surge control2022 11,199,137Gas turbine engine system cooldown2021

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2021–2023Patents assigned to RAYTHEON TECH CORP (4)· patent assignee history

2021–2023Patents assigned to UNITED TECHNOLOGIES CORP (4)· patent assignee history

2021–2025Based in US· patent location history

2025Patents assigned to RTX CORP (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
RAYTHEON TECH CORP	4	2021–2023
UNITED TECHNOLOGIES CORP	4	2021–2023
RTX CORP	2	2025

Locations

Location	Patents	Span
US	6	2021–2025