Inventor
Julius Michael Liptak
Inventor
Knightdale, NC, US
Overview
Patents· 14 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H02Hprimary
H02HEmergency protective circuit arrangements25%
G01RMeasuring electric variables11%
H01HElectric switches11%
H02JElectric power networks7%
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 systems7%
H02PControl or regulation of electric motors, electric generators or dynamo-electric converters7%
H05KPrinted circuits7%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution7%
G05FSystems for regulating electric or magnetic variables4%
H04BTransmission4%
PatentTitleYear
10,637,383Power factor correction capacitor wear detection202010,511,238Temperature-based diagnostics method for a starter island20199,391,441'Zone selective interlocking for optical flash detection suppression'20169,373,980'Full-duplex signaling for arc event protection'20168,964,344'Circuit breaker signaling system for control of an arc fault detection system'20157,680,561'Method of facilitating communications across open circuit breaker contacts'20107,180,759'Push-pull inverter with snubber energy recovery'20076,433,987'Protected and printed wiring board and method of making same'20026,184,464'Protective containment apparatus for potted electronic circuits'20015,170,310'Fail-resistant solid state interruption system'19924,788,493'Apparatus for detecting direction of electric power flow'19884,720,776'DC bus shorting apparatus and method for polyphase AC inverter'19884,308,491'Automatic fault protection system for power recovery control'19814,099,227'Sensor circuit'1978Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1978–2007Patents assigned to SQUARE D CO (8)· patent assignee history
1978–1988Based in Columbia, SC, US· patent location history
1992–2020Based in Knightdale, NC, US· patent location history
2010–2020Patents assigned to SCHNEIDER ELECTRIC USA INC (6)· patent assignee history
2015–2016Patents assigned to LIPTAK JULIUS MICHAEL (3)· patent assignee history
2015Patents assigned to SPANGENBERG RICHARD GERHARD (1)· patent assignee history
2016Patents assigned to MACKENZIE IV JOHN KENNETH (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SQUARE D CO | 8 | 1978–2007 |
| SCHNEIDER ELECTRIC USA INC | 6 | 2010–2020 |
| LIPTAK JULIUS MICHAELself | 3 | 2015–2016 |
| MACKENZIE IV JOHN KENNETH | 2 | 2016 |
| SPANGENBERG RICHARD GERHARD | 1 | 2015 |
Locations
| Location | Patents | Span |
|---|---|---|
| Knightdale, NC, US | 10 | 1992–2020 |
| Columbia, SC, US | 4 | 1978–1988 |