Inventor
William V. Fitzgerald
Inventor
Zionsville, IN, US
Overview
Patents· 28 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 systems26%
F16KValves19%
Y10TTechnical subjects covered by former us classification17%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications13%
H04NPictorial communication, e.g. television11%
H03KPulse technique4%
F16LPipes2%
G05DSystems for controlling or regulating non-electric variables2%
G06FElectric digital data processing2%
H01FMagnets2%
PatentTitleYear
8,978,706'Pressure reducer'20158,720,854'Floating ball valve seal with dynamic C-seal and static C-seal'20148,564,338'Switchable load for initializing an output voltage of a power supply'20138,254,151'Power supply'20128,018,749'Synchronous rectifier'20118,011,386'Control valve having “C†seal'20117,681,594'Control valve having “C†seal'20107,373,951'Control valve having “C†seal'20086,851,658'Control valve trim and bore seal'20056,504,733'Switch mode power supply'20036,433,663'High voltage transformer arrangement'20026,205,037'Overload protection for a switch mode power supply'20016,166,926'Zero voltage switching power supply with burst mode'20005,877,946'Forward converter with an inductor coupled to a transformer winding'19995,841,642'Tuned switch-mode power supply with current mode control'19985,835,361'Switch-mode power supply with over-current protection'19985,796,597'Switch-mode power supply with over-current protection'19985,719,756'Forward converter with an inductor coupled to a transformer winding'19985,463,290'Power supply stabilization circuit with separate AC/DC negative feedback paths'19955,197,328'Diagnostic apparatus and method for fluid control valves'19935,109,692'Diagnostic apparatus and method for fluid control valves'19924,976,144'Diagnostic apparatus and method for fluid control valves'19904,680,511'Video apparatus for generating a conductively isolated control signal'19874,525,739'Television receiver power supply regulation responding to beam current changes'19854,466,051'Regulated power supply incorporating a power transformer having a tightly coupled supplemental power transfer winding'19844,318,035'Side pincushion correction circuit'19824,293,803'Vertical deflection circuit'19814,272,777'Service switch apparatus'1981Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1981–1987Patents assigned to RCA CORP (6)· patent assignee history
1981–1987Based in Indianapolis, IN, US· patent location history
1990–2015Patents assigned to FISHER CONTROLS INT (9)· patent assignee history
1990–1993Based in McKinney, TX, US· patent location history
1995–1999Patents assigned to THOMSON CONSUMER ELECTRONICS (4)· patent assignee history
1995–2013Based in Zionsville, IN, US· patent location history
2000–2003Patents assigned to THOMSON LICENSING SA (4)· patent assignee history
2005–2008Based in Melbourne, IA, US· patent location history
2010–2015Based in Marshalltown, IA, US· patent location history
2011–2013Patents assigned to THOMSON LICENSING (3)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| FISHER CONTROLS INT | 9 | 1990–2015 |
| RCA CORP | 6 | 1981–1987 |
| THOMSON CONSUMER ELECTRONICS | 4 | 1995–1999 |
| THOMSON LICENSING SA | 4 | 2000–2003 |
| THOMSON LICENSING | 3 | 2011–2013 |
Locations
| Location | Patents | Span |
|---|---|---|
| Zionsville, IN, US | 13 | 1995–2013 |
| Indianapolis, IN, US | 6 | 1981–1987 |
| Marshalltown, IA, US | 4 | 2010–2015 |
| McKinney, Texas, US | 3 | 1990–1993 |
| Melbourne, IA, US | 2 | 2005–2008 |