Inventor
Stephen E. Long
Inventor
Carmel, IN, US
Overview
Patents· 6 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G01Nprimary
G01NInvestigating or analysing materials by determining their chemical or physical properties24%
B64DEquipment for fitting in or to aircraft12%
F02CGas-turbine plants12%
F05DIndexing scheme for aspects relating to non-positive-displacement machines or engines, gas-turbines or jet-propulsion plants12%
Y02TClimate change mitigation technologies related to transportation12%
F01DNon-positive displacement machines or engines, e.g. steam turbines6%
F02KJet-propulsion plants6%
H01JElectric discharge tubes or discharge lamps6%
H02JElectric power networks6%
Y10TTechnical subjects covered by former us classification6%
PatentTitleYear
10,907,494Parallel hybrid propulsion system202110,906,658Energy storage system for a hybrid power system20218,007,742'IRIS digester-evaporator interface'20115,495,747'Device for detecting gases for use in diffusion and forced flow modes'19965,054,328'Gas analyzer with diffusion filter'19914,198,281'Solvator plug'1980Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1980Patents assigned to CATALYST RESEARCH CORP (1)· patent assignee history
1980Based in Baltimore, MD, US· patent location history
1991–1996Patents assigned to MINE SAFETY APPLIANCES CO (2)· patent assignee history
1991–1996Based in Murrysville, PA, US· patent location history
2011Patents assigned to US COMMERCE (1)· patent assignee history
2011Based in Gaithersburg, MD, US· patent location history
2021Patents assigned to ROLLS ROYCE NAM TECH INC (2)· patent assignee history
2021Patents assigned to ROLLS ROYCE SINGAPORE PTE LTD (1)· patent assignee history
2021Based in Carmel, IN, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| MINE SAFETY APPLIANCES CO | 2 | 1991–1996 |
| ROLLS ROYCE NAM TECH INC | 2 | 2021 |
| CATALYST RESEARCH CORP | 1 | 1980 |
| ROLLS ROYCE SINGAPORE PTE LTD | 1 | 2021 |
| US COMMERCE | 1 | 2011 |
Locations
| Location | Patents | Span |
|---|---|---|
| Carmel, IN, US | 2 | 2021 |
| Murrysville, Pennsylvania, US | 2 | 1991–1996 |
| Gaithersburg, Maryland, US | 1 | 2011 |
| Baltimore, Maryland, US | 1 | 1980 |