Inventor
Dhaval Dalal
Inventor
Merrimack, NH, US
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H02Mprimary
H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems44%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications33%
H04MTelephonic communication11%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests11%
PatentTitleYear
7,345,896'Secondary side power supply controller and method therefor'20086,115,469'Telephone line ring signal and DC power generator'20005,847,942'Controller for isolated boost converter with improved detection of RMS input voltage for distortion reduction and having load-dependent overlap conduction delay of shunt MOSFET'19985,642,274'Low noise sinusoidal controller for pulse width modulated converters'19975,351,179'Lossless active snubber for half-bridge output rectifiers'1994Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1994Patents assigned to DIGITAL EQUIPMENT CORP (1)· patent assignee history
1994Based in Shrewsbury, MA, US· patent location history
1997Patents assigned to PHILIPS CORP (1)· patent assignee history
1997Based in Nashua, NH, US· patent location history
1998–2000Patents assigned to UNITRODE CORP (2)· patent assignee history
1998–2000Based in Merrimack, NH, US· patent location history
2008Patents assigned to SEMICONDUCTOR COMPONENTS IND (1)· patent assignee history
2008Based in Phoenix, AZ, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| UNITRODE CORP | 2 | 1998–2000 |
| DIGITAL EQUIPMENT CORP | 1 | 1994 |
| PHILIPS CORP | 1 | 1997 |
| SEMICONDUCTOR COMPONENTS IND | 1 | 2008 |
Locations
| Location | Patents | Span |
|---|---|---|
| Merrimack, NH, US | 2 | 1998–2000 |
| Phoenix, AZ, US | 1 | 2008 |
| Nashua, NH, US | 1 | 1997 |
| Shrewsbury, Massachusetts, US | 1 | 1994 |