Inventor
James E. Ferree
Inventor
Lawrenceville, GA, US
Overview
Patents· 18 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H01Hprimary
H01HElectric switches90%
H02BBoards, substations or switching arrangements for the supply or distribution of electric power5%
H02KDynamo-electric machines5%
PatentTitleYear
10,497,528Multi-finger electrical contact assemblies , circuit breakers, and methods having increased current withstand capabilities201910,381,180Electric arc extinguishing apparatus for a molded case circuit breaker20199,805,887'Slot motor configuration for high amperage multi-finger circuit breaker'20179,552,934'Slot motor, slot motor cover, slot motor—arc plate assembly, and methods of operation'20179,281,144'Circuit breaker contact assembly and cam lever'20169,087,665'Circuit breaker electrical contact assembly, and systems and methods using same'20158,159,319'Double-breaking contact system for a low voltage circuit breaker, a molded case circuit breaker comprising the double-breaking contact system, and a method for breaking a circuit'20127,977,592'Double break disconnect/contact system'20116,831,534'External actuator interlock mechanism for circuit breaker'20046,597,266'External actuator interlock mechanism for circuit breaker'20036,396,370'Bi-metal trip unit for a molded case circuit breaker'20026,392,512'Stationary line bus assembly'20026,181,226'Bi-metal trip unit for a molded case circuit breaker'20015,994,988'Movable contact structure for a circuit breaker, including crossbar and spring biased cam mechanism'19995,872,495'Variable thermal and magnetic structure for a circuitbreaker trip unit'19995,585,609'Circuit breaker with movable main contact multi-force-level biasing element'19965,515,018'Pivoting circuit breaker load terminal'19964,761,521'Drawout and interlock assembly for molded case circuit breakers'1988Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1988–2019Based in Lawrenceville, GA, US· patent location history
1996–2004Patents assigned to SIEMENS ENERGY & AUTOMAT (9)· patent assignee history
2011–2019Patents assigned to SIEMENS INDUSTRY INC (2)· patent assignee history
2012–2019Patents assigned to SIEMENS AG (6)· patent assignee history
2015–2017Patents assigned to FERREE JAMES EDWARD (3)· patent assignee history
2017Patents assigned to CARDWELL JUSTIN MICHAEL (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SIEMENS ENERGY & AUTOMAT | 9 | 1996–2004 |
| SIEMENS AG | 6 | 2012–2019 |
| FERREE JAMES EDWARDself | 3 | 2015–2017 |
| SIEMENS INDUSTRY INC | 2 | 2011–2019 |
| CARDWELL JUSTIN MICHAEL | 1 | 2017 |
Locations
| Location | Patents | Span |
|---|---|---|
| Lawrenceville, Georgia, US | 18 | 1988–2019 |