Inventor
David Spencer Ewens
Inventor
Greer, SC, US
Overview
Patents· 21 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F02Cprimary
F02CGas-turbine plants22%
F05DIndexing scheme for aspects relating to non-positive-displacement machines or engines, gas-turbines or jet-propulsion plants21%
F01DNon-positive displacement machines or engines, e.g. steam turbines8%
B64DEquipment for fitting in or to aircraft7%
G05BControl or regulating systems in general6%
Y02TClimate change mitigation technologies related to transportation6%
B64CAeroplanes3%
B64FGround or aircraft-carrier-deck installations specially adapted for use in connection with aircraft3%
G01MTesting static or dynamic balance of machines or structures3%
G05DSystems for controlling or regulating non-electric variables3%
PatentTitleYear
10,697,318Efficiency maps for tracking component degradation202010,556,699Aircraft engine assembly comprising a pylon leading edge incorporated with an annular row of unfaired after-guide vanes202010,508,597Systems and methods for icing detection of compressors201910,474,113Power generation system control through adaptive learning201910,408,132Systems and methods for adaptively purging fuel circuits201910,401,881Systems and methods for quantification of a gas turbine inlet filter blockage201910,189,575Aircraft engine assembly comprising rear engine attachments in the form of shackles20199,896,960'Adaptive model-based method to quantify degradation of a power generation system'20189,889,943'Assembly for an aircraft, comprising an engine attachment body equipped with at least one shackle support fitting that passes into the box section of the attachment pylon'20189,868,545'Primary structure for an attachment pylon with firewall and thermal layers'20189,862,497'Assembly for an aircraft, comprising an engine attachment body partially produced in one piece with an internal stiffening rib of an attachment pylon box section'20189,797,315'Probabilistic control in gas turbine tuning for power output-emissions parameters, related control systems, computer program products and methods'20179,732,672'Method and system for gas turbine power augmentation using steam injection'20179,639,071'Method and system for combustion mode transfer for a gas turbine engine'20179,605,559'Wash timing based on turbine operating parameters'20179,255,525'System and method for gas turbine operation'20169,115,648'Corrected megawatt backup curve methodology'20159,014,945'Online enhancement for improved gas turbine performance'20158,639,480'Methods and systems for modeling turbine operation'20148,516,829'Systems and methods for modifying the performance of a gas turbine'20138,171,717'Model-based coordinated air-fuel control for a gas turbine'2012Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2012–2020Patents assigned to GEN ELECTRIC (16)· patent assignee history
2012–2014Patents assigned to EWENS DAVID SPENCER (2)· patent assignee history
2012–2014Patents assigned to LONG CHRISTOPHER EUGENE (2)· patent assignee history
2012–2019Based in Greer, SC, US· patent location history
2013–2015Patents assigned to EWENS DAVID (2)· patent assignee history
2014–2020Based in Greenville, SC, US· patent location history
2018–2020Patents assigned to AIRBUS OPERATIONS SAS (5)· patent assignee history
2018–2020Based in Merville, FR· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| GEN ELECTRIC | 16 | 2012–2020 |
| AIRBUS OPERATIONS SAS | 5 | 2018–2020 |
| EWENS DAVIDself | 2 | 2013–2015 |
| EWENS DAVID SPENCERself | 2 | 2012–2014 |
| LONG CHRISTOPHER EUGENE | 2 | 2012–2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| Greer, SC, US | 13 | 2012–2019 |
| Merville, FR | 5 | 2018–2020 |
| Greenville, SC, US | 3 | 2014–2020 |