Inventor
Roger C. Walker
Inventor
Middletown, OH, US
Overview
Patents· 20 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 turbines38%
F05DIndexing scheme for aspects relating to non-positive-displacement machines or engines, gas-turbines or jet-propulsion plants15%
Y02TClimate change mitigation technologies related to transportation10%
F04DNon-positive-displacement pumps8%
F02CGas-turbine plants6%
F16BDevices for fastening or securing constructional elements or machine parts together, e.g. nails, bolts, circlips, clamps, clips or wedges4%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests4%
Y10TTechnical subjects covered by former us classification4%
B63HMarine propulsion or steering2%
C30BSingle-crystal growth2%
PatentTitleYear
11,086,354Automated retractable information display device20219,322,275'Self locking nut and bolt assembly'20168,784,061'Methods and systems for controlling thermal differential in turbine systems'20148,182,205'Gas turbine engine with insulated cooling circuit'20128,128,371'Method and apparatus to facilitate increasing turbine rotor efficiency'20128,038,382'Methods and systems for controlling gas turbine clearance'20117,993,102'Rotor cooling circuit'20116,784,597'Self-locking nut for stud shaft and stacked wheel assembly for the rotor of a rotary machine'20046,398,500'Retention system and method for the blades of a rotary machine'20025,853,285'Cooling air tube vibration damper'19985,713,721'Retention system for the blades of a rotary machine'19985,351,478'Compressor casing assembly'19945,320,487'Spring clip made of a directionally solidified material for use in a gas turbine engine'19945,320,484'Turbomachine stator having a double skin casing including means for preventing gas flow longitudinally therethrough'19945,320,486'Apparatus for positioning compressor liner segments'19945,257,909'Dovetail sealing device for axial dovetail rotor blades'19935,211,533'Flow diverter for turbomachinery seals'19935,211,407'Compressor rotor cross shank leak seal for axial dovetails'19935,182,906'Hybrid spinner nose configuration in a gas turbine engine having a bypass duct'19935,012,420'Active clearance control for gas turbine engine'1991Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1991–2016Patents assigned to GEN ELECTRIC (19)· patent assignee history
1991Based in Fairfield, OH, US· patent location history
1993–1998Based in Middletown, OH, US· patent location history
2002–2012Based in Piedmont, SC, US· patent location history
2012–2016Patents assigned to WALKER ROGER CLAYTON (3)· patent assignee history
2012Patents assigned to AKIN ROBERT CRAG (1)· patent assignee history
2014–2016Patents assigned to FERSLEW MATTHEW RYAN (2)· patent assignee history
2014Patents assigned to ARE NARENDRA (1)· patent assignee history
2014–2016Based in Greenville, SC, US· patent location history
2021Based in Savannah, GA, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| GEN ELECTRIC | 19 | 1991–2016 |
| WALKER ROGER CLAYTONself | 3 | 2012–2016 |
| FERSLEW MATTHEW RYAN | 2 | 2014–2016 |
| AKIN ROBERT CRAG | 1 | 2012 |
| ARE NARENDRA | 1 | 2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| Middletown, OH, US | 10 | 1993–1998 |
| Piedmont, SC, US | 6 | 2002–2012 |
| Greenville, SC, US | 2 | 2014–2016 |
| Savannah, Georgia, US | 1 | 2021 |
| Fairfield, OH, US | 1 | 1991 |