Pak-Jong Chu

Person

Ottawa, CA

People

Patents Grantslast 30 patents

Information Patent Grant
Side operated key actuator
- Patent number 5,752,596
- Issue date May 19, 1998
- Northern Telecom Limited
- Pak-Jong Chu
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Expandable modular switching unit
- Patent number 4,972,296
- Issue date Nov 20, 1990
- Northern Telecom Limited
- Pak-Jong Chu
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Telephone hook switch with elastomeric contact member
- Patent number 4,709,389
- Issue date Nov 24, 1987
- Northern Telecom Limited
- Anthony J. Langenberg
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Circuit board with contact positions, as used for telecommunication...
- Patent number 4,647,729
- Issue date Mar 3, 1987
- Northern Telecom Limited
- Geoffrey A. Collar
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Pushbutton switch assembly
- Patent number 4,486,637
- Issue date Dec 4, 1984
- Northern Telecom Limited
- Pak J. Chu
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Rotary switch using a flexible circuit member
- Patent number 4,348,559
- Issue date Sep 7, 1982
- Northern Telecom Limited
- Pak-Jong Chu
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Latching lever for printed circuit boards
- Patent number 4,313,150
- Issue date Jan 26, 1982
- Northern Telecom Limited
- Pak-Jong Chu
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Multiple cantilever spring contact switch
- Patent number 4,268,726
- Issue date May 19, 1981
- Northern Telecom Limited
- Pak-Jong Chu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Multiple cantilever spring contact switch
- Patent number 4,259,558
- Issue date Mar 31, 1981
- Northern Telecom Limited
- Stanley A. Croft
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Hinge having reproducible bearing friction
- Patent number 4,218,808
- Issue date Aug 26, 1980
- Northern Telecom Limited
- Pak-Jong Chu
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
Information Patent Grant
Multiple contact switch
- Patent number 4,091,244
- Issue date May 23, 1978
- Northern Telecom Limited
- Pak-Jong Chu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Pushbutton dials
- Patent number 4,049,924
- Issue date Sep 20, 1977
- Northern Telecom Limited
- Pak-Jong Chu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Multi-contact push-button switch and plural embodiment for keyboard...
- Patent number 4,029,916
- Issue date Jun 14, 1977
- Northern Electric Company Limited
- Pak-Jong Chu
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Multi-contact push-button switch having plural prestressed contact...
- Patent number 3,996,429
- Issue date Dec 7, 1976
- Northern Electric Company Limited
- Pak-Jong Chu
- H01 - BASIC ELECTRIC ELEMENTS

Pak-Jong Chu

Person

Patents Grantslast 30 patents

Side operated key actuator

Expandable modular switching unit

Telephone hook switch with elastomeric contact member

Circuit board with contact positions, as used for telecommunication...

Pushbutton switch assembly

Rotary switch using a flexible circuit member

Latching lever for printed circuit boards

Multiple cantilever spring contact switch

Multiple cantilever spring contact switch

Hinge having reproducible bearing friction

Multiple contact switch

Pushbutton dials

Multi-contact push-button switch and plural embodiment for keyboard...

Multi-contact push-button switch having plural prestressed contact...