Inventor
Subrata K. Das
Inventor
Granite Springs, NY, US
Overview
Patents· 7 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G09Bprimary
G09BEducational or demonstration appliances20%
G10LSpeech analysis techniques or speech synthesis20%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests20%
H01LSemiconductor devices10%
H04MTelephonic communication10%
H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers10%
H10DInorganic electric semiconductor devices10%
PatentTitleYear
10,964,824Two-dimensional electrostrictive field effect transistor (2D-EFET)20218,139,722'System and method for expedited resolution of inquiries for an automated agent'20127,487,084'Apparatus, program storage device and method for testing speech recognition in the mobile environment of a vehicle'20097,270,546'System and method for interactive reading and language instruction'20076,017,219'System and method for interactive reading and language instruction'20004,618,984'Adaptive automatic discrete utterance recognition'19864,570,746'Wind/breath screen for a microphone'1986Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1986–2012Patents assigned to IBM (6)· patent assignee history
1986–2012Based in Granite Springs, NY, US· patent location history
2012Patents assigned to DAS SUBRATA K (1)· patent assignee history
2012Patents assigned to JAN EA-EE (1)· patent assignee history
2021Patents assigned to PENN STATE RES FOUND (1)· patent assignee history
2021Based in State College, PA, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| IBM | 6 | 1986–2012 |
| DAS SUBRATA Kself | 1 | 2012 |
| JAN EA-EE | 1 | 2012 |
| PENN STATE RES FOUND | 1 | 2021 |
Locations
| Location | Patents | Span |
|---|---|---|
| Granite Springs, New York, US | 6 | 1986–2012 |
| State College, Pennsylvania, US | 1 | 2021 |