Inventor
Charles B. Mattas
Inventor
Glenview, IL, US
Overview
Patents· 9 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H05Bprimary
H05BElectric heating44%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests39%
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 systems6%
H05KPrinted circuits6%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications6%
PatentTitleYear
6,798,153'Method of regulating power in a high-intensity-discharge lamp'20046,215,663'Printed circuit board assembly with improved thermal performance'20015,945,784'High intensity discharge ballast'19995,686,798'Lamp ballast circuit characterized by a single resonant frequency substantially greater than the fundamental frequency of the inverter output signal'19975,563,473'Electronic ballast for operating lamps in parallel'19965,463,284'Lamp ballast circuit characterized by a single resonant frequency substantially greater than the fundamental frequency of the inverter output signal'19955,410,221'Lamp ballast with frequency modulated lamp frequency'19955,089,753'Arrangement for predicting failure in fluorescent lamp systems'19924,958,107'Switching arrangement for HID lamps'1990Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1990–1997Patents assigned to PHILIPS CORP (4)· patent assignee history
1990–2004Based in Glenview, IL, US· patent location history
1995–2001Patents assigned to PHILIPS ELECTRONICS NA (4)· patent assignee history
2004Patents assigned to KONINKL PHILIPS ELECTRONICS NV (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| PHILIPS CORP | 4 | 1990–1997 |
| PHILIPS ELECTRONICS NA | 4 | 1995–2001 |
| KONINKL PHILIPS ELECTRONICS NV | 1 | 2004 |
Locations
| Location | Patents | Span |
|---|---|---|
| Glenview, Illinois, US | 9 | 1990–2004 |