Patent Assignment
Reel/Frame 009614/0014
Assignment of Assignor's Interest
Recorded: 1998-11-30
Pages: 5
Assignor
NORTHERN TELECOM LIMITED
Executed: 1998-09-25
Assignee
ASTEC INTERNATIONAL LIMITED
38TH FLOOR, CENTRAL PLAZA, 18 HARBOUR ROAD, WANCHAI, HONG KONG
Covered Properties
(20)
Base Drive Circuit for Power Transitors
Patent:
4,447,741 →
Application:
06/424,087 →
Single-Ended Self Oscillating Dc-Dc Converter with Regulator and in- Hibit Control
Patent:
4,737,898 →
Application:
07/014,896 →
Selective Connection of Power Supplies
Patent:
4,812,672 →
Application:
07/103,200 →
Current Fed Push Pull Power Coverter
Patent:
4,980,813 →
Application:
07/454,596 →
Method of Feedback Regulating a Flyback Power Converter
Patent:
4,996,638 →
Application:
07/480,392 →
Surge Current-Limiting Circuit for a Large-Capacitance Load
Patent:
5,079,455 →
Application:
07/551,111 →
Constant Frequency Resonant Dc/Dc Converter
Patent:
5,208,738 →
Application:
07/627,157 →
Constant Frequency Resonant Dc/Dc Converter
Patent:
5,157,593 →
Application:
07/676,597 →
Asymmetrical Pulse Width Modulated Resonant Dc/Dc Converter
Patent:
5,159,541 →
Application:
07/786,221 →
Current Limit Circuit in Current Mode Power Supplies
Patent:
5,285,366 →
Application:
07/950,240 →
Power Converter with Plural Regulated Outputs
Patent:
5,400,239 →
Application:
07/989,588 →
Tertiary Side Resonant Dc/Dc Converter
Patent:
5,438,497 →
Application:
08/059,973 →
Inrush Current Limiting Circuit
Patent:
5,374,887 →
Application:
08/150,911 →
High Frequency Power Distribution System
Patent:
5,444,608 →
Application:
08/233,600 →
Battery Charger/Rectifier Voltage Temperature Compensation Circuit Including Protection and Diagnostic Scheme
Patent:
5,869,969 →
Application:
08/747,824 →
Power Factor Correction Circuit with Soft Switched Boost Converter
Patent:
5,923,152 →
Application:
08/803,464 →
Power Factor and Crest Factor Circuit
Patent:
5,835,369 →
Application:
08/893,543 →
Controller System for a Dc Power Supply
Patent:
5,986,434 →
Application:
08/936,729 →
Soft Switched Pwm Ac to Dc Converter with Gate Array Logic Control
Patent:
5,870,294 →
Application:
08/939,103 →
Buck Regulator with Plural Outputs
Patent:
5,977,753 →
Application:
09/082,515 →
Related Assignments
(25)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignors Interest.
Sep 27, 1982
From: MOSCHOPOULOS, ANASTASIOS
To: NORTHERN TELECOM LIMITED,
Reel/Frame 004092/0436 →
Assignment of Assignors Interest.
May 3, 1990
From: WELLS, MARK R.
To: BELL-NORTHERN RESEARCH LTD.
Reel/Frame 005285/0011 →
Assignment of Assignors Interest.
May 3, 1990
From: BELL-NORTHERN RESEARCH LTD.
To: NORTHERN TELECOM LIMITED
Reel/Frame 005285/0012 →
Assignment of Assignors Interest.
Aug 17, 1990
From: MC CAFFERTY, LORY N.; ORR, RAYMOND K.
To: BELL-NORTHERN RESEARCH LTD., P.O. BOX 3511, STATION C, OTTAWA, ONTARIO, CANADA, K1Y 4H7
Reel/Frame 005439/0875 →
Assignment of Assignors Interest.
Aug 17, 1990
From: BELL-NORTHERN RESEARCH LTD.
To: NORTHERN TELECOM LIMITED
Reel/Frame 005439/0877 →
Assignment of Assignors Interest.
Nov 23, 1990
From: BELL-NORTHERN RESEARCH LTD.
To: NORTHERN TELECOM LIMITED,
Reel/Frame 005520/0414 →
Assignment of Assignors Interest.
Nov 23, 1990
From: ORR, RAYMOND K.
To: BELL-NORTHERN RESEARCH LTD.,
Reel/Frame 005520/0413 →
Assignment of Assignors Interest.
Dec 13, 1990
From: JAIN, PRAVEEN K.
To: BELL-NORTHERN RESEARCH LTD.
Reel/Frame 005545/0386 →
Assignment of Assignors Interest.
Mar 28, 1991
From: BELL-NORTHERN RESEARCH LTD.
To: NORTHERN TELECOM LIMITED, P.O. BOX 6123, STATION A, MONTREAL, QUEBEC, CANADA H3C 3J5
Reel/Frame 005684/0183 →
Assignment of Assignors Interest.
Mar 28, 1991
From: JAIN, PRAVEEN K.
To: BELL-NORTHERN RESEARCH LTD., P.O. BOX 3511, STATION C, OTTAWA, ONTARIO CANADA, K1Y 4H7
Reel/Frame 005684/0181 →
Assignment of Assignors Interest.
Aug 29, 1991
From: BELL-NORTHERN RESEARCH LTD.
To: NORTHERN TELECOM LIMITED
Reel/Frame 005833/0103 →
Assignment of Assignors Interest.
Oct 31, 1991
From: JAIN, PRAVEEN K.
To: BELL-NORTHERN RESEARCH LTD.
Reel/Frame 005914/0026 →
Assignment of Assignors Interest.
Oct 31, 1991
From: BELL-NORTHERN RESEARCH LTD.
To: NORTHERN TELECOM LIMITED
Reel/Frame 005914/0028 →
Assignment of Assignors Interest.
Apr 7, 1993
From: BNR, INC.
To: NORTHERN TELECOM LIMITED
Reel/Frame 006490/0412 →
Assignment of Assignors Interest.
Apr 7, 1993
From: CAINE, STEVEN L.
To: BNR INC.
Reel/Frame 006490/0414 →
Assignment of Assignor's Interest
Jul 14, 1993
From: BNR, INC.
To: NORTHERN TELECOM LIMITED
Reel/Frame 006599/0731 →
Assignment of Assignor's Interest
Jul 14, 1993
From: ZARETSKY, BORIS
To: BNR INC.
Reel/Frame 006616/0027 →
Assignment of Assignor's Interest
Jul 15, 1993
From: BELL-NORTHERN RESEARCH LTD.
To: NORTHERN TELECOM LIMITED
Reel/Frame 006599/0520 →
Assignment of Assignor's Interest
Jul 15, 1993
From: JAIN, PRAVEEN K.
To: BELL-NORTHERN RESEARCH LTD.
Reel/Frame 006632/0775 →
Assignment of Assignor's Interest
May 5, 1994
From: DROBNIK, JOSEF C.
To: BELL-NORTHERN RESEARCH LTD.
Reel/Frame 006979/0399 →
Assignment of Assignor's Interest
May 5, 1994
From: BELL-NORTHERN RESEARCH LTD.
To: NORTHERN TELECOM LIMITED
Reel/Frame 006986/0651 →
Assignment of Assignor's Interest
Jun 30, 1994
From: BELL-NORTHERN RESEARCH LTD.
To: NORTHERN TELECOM LIMITED
Reel/Frame 007041/0480 →
Assignment of Assignor's Interest
Jun 30, 1994
From: JAIN, PRAVEEN KUMAR; EDWARDS, GARY A.; HUBBARD, CARL; BANNARD, DOUGLAS ROBERT
To: BELL-NORTHERN RESEARCH LTD.
Reel/Frame 007041/0478 →
Assignment of Assignor's Interest
Nov 13, 1996
From: CIVIDINO, LORENZO; CARLI, GIAMPAOLO
To: NORTHERN TELECOM LIMITED
Reel/Frame 008316/0522 →
Assignment of Assignor's Interest
Feb 20, 1997
From: GUERRERA, NUNZIO
To: NORTHERN TELECOM LIMITED
Reel/Frame 008408/0679 →