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Patent Assignment Details
NOTE:Results display only for issued patents and published applications. For pending or abandoned applications please consult USPTO staff.

Reel/Frame:014192/0183   Pages: 7
Recorded: 06/30/2003
Conveyance: CHANGE OF NAME (SEE DOCUMENT FOR DETAILS).
Total properties: 31
1
Patent #:
5629435
Issue Dt:
05/13/1997
Application #:
08401540
Filing Dt:
03/10/1995
Title:
HYDROGEN SULFIDE GAS SENSOR AND PRECURSOR COMPOUNDS FOR MANUFACTURE OF SAME
2
Patent #:
5821720
Issue Dt:
10/13/1998
Application #:
08846442
Filing Dt:
04/30/1997
Title:
BACKLASH ELIMINATION IN THE DRIVETRAIN OF AN ELECTRIC VEHICLE
3
Patent #:
6072297
Issue Dt:
06/06/2000
Application #:
08926415
Filing Dt:
09/09/1997
Title:
VIBRATION DETECTION AND CONTROL FOR A VEHICLE DRIVETRAIN
4
Patent #:
6047787
Issue Dt:
04/11/2000
Application #:
09017934
Filing Dt:
02/03/1998
Title:
VOLTAGE CONTROL METHOD FOR AN ELECTRIC MOTOR CONTROL SYSTEM
5
Patent #:
5905349
Issue Dt:
05/18/1999
Application #:
09064237
Filing Dt:
04/23/1998
Title:
METHOD OF CONTROLLING ELECTRIC MOTOR TORQUE IN AN ELECTRIC VEHICLE
6
Patent #:
6307275
Issue Dt:
10/23/2001
Application #:
09495443
Filing Dt:
01/31/2000
Title:
METHOD AND APPARATUS FOR CONTROLLING A HIGH-SPEED AC PERMANENT MAGNET SYNCHRONOUS MOTOR COUPLED TO AN INDUSTRIAL TURBO ENGINE
7
Patent #:
6239575
Issue Dt:
05/29/2001
Application #:
09502869
Filing Dt:
02/11/2000
Title:
Induction motor power/torque clamping for electric vehicle performance
8
Patent #:
6330143
Issue Dt:
12/11/2001
Application #:
09512480
Filing Dt:
02/23/2000
Title:
Automatic over-current protection of transistors
9
Patent #:
6169679
Issue Dt:
01/02/2001
Application #:
09532796
Filing Dt:
03/21/2000
Title:
Method and system for synchronizing the phase angles of parallel connected inverters
10
Patent #:
6359800
Issue Dt:
03/19/2002
Application #:
09546764
Filing Dt:
04/11/2000
Title:
Direct current electric power generation system with variable speed alternating current generators
11
Patent #:
6327524
Issue Dt:
12/04/2001
Application #:
09561546
Filing Dt:
04/28/2000
Title:
System for high efficiency motor control
12
Patent #:
6359366
Issue Dt:
03/19/2002
Application #:
09567345
Filing Dt:
05/09/2000
Title:
Hybrid permanent magnet/synchronous machines
13
Patent #:
6366049
Issue Dt:
04/02/2002
Application #:
09567592
Filing Dt:
05/10/2000
Title:
Motor starter and speed controller system
14
Patent #:
6178103
Issue Dt:
01/23/2001
Application #:
09567965
Filing Dt:
05/10/2000
Title:
Method and circuit for synchronizing parallel voltage source inverters
15
Patent #:
6212085
Issue Dt:
04/03/2001
Application #:
09593613
Filing Dt:
06/13/2000
Title:
Integrated dual voltage sourced inverter
16
Patent #:
6362988
Issue Dt:
03/26/2002
Application #:
09606865
Filing Dt:
06/29/2000
Title:
SYSTEM AND METHOD FOR SYNCHRONIZING THE PHASE ANGLE FOR AN AC POWER SOURCE IN PARALLEL OPERATION WITH A GRID
17
Patent #:
6239997
Issue Dt:
05/29/2001
Application #:
09653478
Filing Dt:
09/01/2000
Title:
Method and system for connecting and synchronizing a supplemental power source to a power grid
18
Patent #:
6388419
Issue Dt:
05/14/2002
Application #:
09653654
Filing Dt:
09/01/2000
Title:
Motor control system
19
Patent #:
6572416
Issue Dt:
06/03/2003
Application #:
09682976
Filing Dt:
11/05/2001
Publication #:
US20030087560
Pub Dt:
05/08/2003
Title:
THREE-PHASE CONNECTOR FOR ELECTRIC VEHICLE DRIVETRAIN
20
Patent #:
6583996
Issue Dt:
06/24/2003
Application #:
09683060
Filing Dt:
11/14/2001
Publication #:
US20020044464
Pub Dt:
04/18/2002
Title:
METHOD AND SYSTEM FOR DETECTING A NEGATIVE SEQUENCE FOR THREE PHASE GRID-CONNECTED INVERTER SYSTEMS
21
Patent #:
6631960
Issue Dt:
10/14/2003
Application #:
09683171
Filing Dt:
11/28/2001
Publication #:
US20030132664
Pub Dt:
07/17/2003
Title:
SERIES REGENERATIVE BRAKING TORQUE CONTROL SYSTEMS AND METHODS
22
Patent #:
6496393
Issue Dt:
12/17/2002
Application #:
09683172
Filing Dt:
11/28/2001
Title:
INTEGRATED TRACTION INVERTER MODULE AND BI-DIRECTIONAL DC/DC CONVERTER
23
Patent #:
6465977
Issue Dt:
10/15/2002
Application #:
09683176
Filing Dt:
11/29/2001
Title:
SYSTEM AND METHOD FOR CONTROLLING TORQUE IN AN ELECTRICAL MACHINE
24
Patent #:
6630809
Issue Dt:
10/07/2003
Application #:
09683180
Filing Dt:
11/29/2001
Publication #:
US20030098665
Pub Dt:
05/29/2003
Title:
SYSTEM AND METHOD FOR INDUCTION MOTOR CONTROL
25
Patent #:
6639334
Issue Dt:
10/28/2003
Application #:
09683199
Filing Dt:
11/30/2001
Publication #:
US20030102728
Pub Dt:
06/05/2003
Title:
JET IMPINGEMENT COOLING OF ELECTRIC MOTOR END-WINDINGS
26
Patent #:
6452352
Issue Dt:
09/17/2002
Application #:
09705236
Filing Dt:
11/02/2000
Title:
METHOD OF CURRENT INTERACTION IN AN ELECTRIC MOTOR DRIVE SYSTEM HAVING A LOAD -DEPENDENT CURRENT GENERATING SYSTEM
27
Patent #:
NONE
Issue Dt:
Application #:
09882708
Filing Dt:
06/15/2001
Publication #:
US20020034088
Pub Dt:
03/21/2002
Title:
Leadframe-based module DC bus design to reduce module inductance
28
Patent #:
6492789
Issue Dt:
12/10/2002
Application #:
09900765
Filing Dt:
07/06/2001
Publication #:
US20020047681
Pub Dt:
04/25/2002
Title:
METHOD AND APPARATUS FOR CONTROLLING A HIGH-SPEED AC PERMANENT MAGNET SYNCHRONOUS MOTOR COUPLED TO AN INDUSTRIAL TURBO ENGINE
29
Patent #:
6501244
Issue Dt:
12/31/2002
Application #:
09900774
Filing Dt:
07/06/2001
Publication #:
US20020047682
Pub Dt:
04/25/2002
Title:
METHOD AND APPARATUS FOR CONTROLLING A HIGH-SPEED AC PERMANENT MAGNET SYNCHRONOUS MOTOR COUPLED TO AN INDUSTRIAL TURBO ENGINE
30
Patent #:
6548931
Issue Dt:
04/15/2003
Application #:
09995024
Filing Dt:
11/26/2001
Publication #:
US20020036442
Pub Dt:
03/28/2002
Title:
HYBRID PERMANENT MAGNET/SYNCHRONOUS MACHINES
31
Patent #:
6707270
Issue Dt:
03/16/2004
Application #:
10010307
Filing Dt:
11/13/2001
Publication #:
US20030090226
Pub Dt:
05/15/2003
Title:
SYSTEM AND METHOD FOR INDUCTION MOTOR CONTROL
Assignor
1
ECOSTAR ELECTRIC DRIVE SYSTEMS, L.L.C.
Exec Dt:
11/30/2001
Assignee
1
BALLARD POWER SYSTEMS CORPORATION
15001 COMMERCE DRIVE NORTH
DEARBORN, MICHIGAN 48120
Correspondence name and address
SEED INTELLECTUAL PROPERTY LAW GROUP
PLLC
KARL R. HERMANNS
701 FIFTH AVENUE, SUITE 6300
SEATTLE, WA 98104-7092

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