Inventor
STEVEN DOUGLAS JOHNSON
Inventor
US
Overview
Patents· 32 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F05Dprimary
F05DIndexing scheme for aspects relating to non-positive-displacement machines or engines, gas-turbines or jet-propulsion plants26%
F01DNon-positive displacement machines or engines, e.g. steam turbines25%
F02CGas-turbine plants22%
Y02TClimate change mitigation technologies related to transportation12%
F28DHeat-exchange apparatus, not provided for in another subclass, in which the heat-exchange media do not come into direct contact4%
F28FDetails of heat-exchange and heat-transfer apparatus, of general application4%
F02KJet-propulsion plants2%
F16JPistons2%
B64DEquipment for fitting in or to aircraft1%
F04DNon-positive-displacement pumps1%
PatentTitleYear
12,460,552Sealing system for a turbomachine202512,428,969Seal assembly for a gas turbine engine202512,416,261Gas turbine engine202512,410,724Gas turbine engine with inertially damped seals202512,404,778Turbine engine with a rotor seal assembly202512,398,671Compressor assembly for a gas turbine engine having multi-stage bleed extraction202512,366,172Seal assembly for a rotary machine having a flexible joint202512,359,621Thermal management system for a gas turbine engine202512,305,535Turbine engine having a compressor with an inducer202512,292,000Thermal management systems having an oil tank comprising solid-solid phase change material for gas turbine engines202512,291,997Variable area turbine nozzle assembly202512,281,850Multi-fluid heat exchanger202512,270,304Turbine engine with a floating seal assembly202512,241,375Seal support assembly for a turbine engine202512,241,372Seal assembly for a rotor shaft of a gas turbine202512,140,034Turbine engine with a rotor seal retraction mechanism202412,123,350Three-stream engine having a heat exchanger202412,116,896Seal support assembly for a turbine engine202412,000,296Seal for a rotor202411,988,096Seal assemblies for turbine engines and related methods202411,976,562System for controlling blade clearances within a gas turbine engine202411,965,697Multi-fluid heat exchanger202411,920,500Passive flow modulation device202411,821,320Turbine engine with a rotor seal assembly202311,788,469Thermal management system for a gas turbine engine202311,732,592Method of cooling a turbine blade202311,692,448Passive valve assembly for a nozzle of a gas turbine engine202311,674,405Abradable insert with lattice structure202311,674,396Cooling air delivery assembly202311,492,972Differential alpha variable area metering202211,391,176Method and apparatus for supplying cooling air to a turbine202211,300,368Monolithic tube-in matrix heat exchanger2022Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2022–2025Patents assigned to GEN ELECTRIC (32)· patent assignee history
2022–2025Based in US· patent location history
2024–2025Patents assigned to GENERAL ELECTRIC DEUTSCHLAND HOLDING GMBH (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| GEN ELECTRIC | 32 | 2022–2025 |
| GENERAL ELECTRIC DEUTSCHLAND HOLDING GMBH | 2 | 2024–2025 |
Locations
| Location | Patents | Span |
|---|---|---|
| US | 32 | 2022–2025 |