Inventor
David B. Upham
Inventor
Sunnyvale, CA, US
Overview
Patents· 4 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H04Lprimary
H04LTransmission of digital information, e.g. telegraphic communication50%
H04JMultiplex communication25%
B82YSpecific uses or applications of nanostructures13%
H04BTransmission13%
PatentTitleYear
RE041517'Recovery and transmission of return-to-zero formatted data using non-return-to-zero devices'20106,624,766'Recovery and transmission of return-to-zero formatted data using non-return-to-zero devices'20036,529,303'Optical communications networks utilizing frequency division multiplexing'20036,452,945'Electrical add-drop multiplexing for optical communications networks utilizing frequency division multiplexing'2002Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2002–2003Patents assigned to KESTREL SOLUTIONS INC (3)· patent assignee history
2002–2010Based in Sunnyvale, CA, US· patent location history
2010Patents assigned to POSSLEY NICHOLAS (1)· patent assignee history
2010Patents assigned to UPHAM DAVID B (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| KESTREL SOLUTIONS INC | 3 | 2002–2003 |
| POSSLEY NICHOLAS | 1 | 2010 |
| UPHAM DAVID Bself | 1 | 2010 |
Locations
| Location | Patents | Span |
|---|---|---|
| Sunnyvale, California, US | 4 | 2002–2010 |