Inventor
David Cohn
Inventor
Seattle, WA, US
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G06Fprimary
G06FElectric digital data processing27%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests27%
G06TImage data processing or generation, in general18%
F21VFunctional features or details of lighting devices or systems thereof9%
F21YIndexing scheme associated with subclasses f21k, f21l, f21s and f21v, relating to the form or the kind of the light sources or of the colour of the light emitted9%
H04LTransmission of digital information, e.g. telegraphic communication9%
PatentTitleYear
10,630,633Real-time collection, analysis and presentation of aggregated selection data by users of social media20206,182,062'Knowledge based information retrieval system'20015,555,408'Knowledge based information retrieval system'19965,404,506'Knowledge based information retrieval system'19954,642,741'Fluorescent lighting system'1987Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1987Patents assigned to GEN ELECTRIC (1)· patent assignee history
1987Based in Chagrin Falls, OH, US· patent location history
1995–2001Patents assigned to HITACHI LTD (3)· patent assignee history
1995–2001Based in Seattle, WA, US· patent location history
2020Patents assigned to ADVANCE LOCAL MEDIA LLC (1)· patent assignee history
2020Based in Berkeley, CA, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HITACHI LTD | 3 | 1995–2001 |
| ADVANCE LOCAL MEDIA LLC | 1 | 2020 |
| GEN ELECTRIC | 1 | 1987 |
Locations
| Location | Patents | Span |
|---|---|---|
| Seattle, Washington, US | 3 | 1995–2001 |
| Berkeley, California, US | 1 | 2020 |
| Chagrin Falls, OH, US | 1 | 1987 |