Inventor
David Goldstein
Inventor
San Francisco, CA, US
Overview
Patents· 7 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
A63Fprimary
A63FCard, board, or roulette games21%
G09BEducational or demonstration appliances21%
H01MProcesses or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy21%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution21%
G06QInformation and communication technology [ict] specially adapted for administrative, commercial, financial, managerial or supervisory purposes11%
H03LAutomatic control, starting, synchronisation or stabilisation of generators of electronic oscillations or pulses5%
PatentTitleYear
8,025,505'Interactive hand held apparatus with stylus'20117,553,160'Interactive hand held apparatus with stylus'20097,529,519'Interactive handheld educational apparatus with stylus'20097,083,420'Interactive handheld apparatus with stylus'20065,812,132'Windowed computer display'19985,555,364'Windowed computer display'19964,450,410'Phase-lock loop control circuitry'1984Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1984Patents assigned to RAYTHEON CO (1)· patent assignee history
1984Based in Framingham, MA, US· patent location history
1996–1998Patents assigned to PROSOFT CORP (2)· patent assignee history
1996–1998Based in Plano, TX, US· patent location history
2006–2011Patents assigned to LEAPFROG ENTPR INC (4)· patent assignee history
2006–2011Based in San Francisco, CA, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| LEAPFROG ENTPR INC | 4 | 2006–2011 |
| PROSOFT CORP | 2 | 1996–1998 |
| RAYTHEON CO | 1 | 1984 |
Locations
| Location | Patents | Span |
|---|---|---|
| San Francisco, California, US | 4 | 2006–2011 |
| Plano, Texas, US | 2 | 1996–1998 |
| Framingham, Massachusetts, US | 1 | 1984 |