Inventor · disambiguated record
Pak-Jong Chu
Also filed as: CHU PAK J · CHU PAK-JONG
18 granted patents·546 citations·filing 1975–1998
95Inventor score
Top patents by PatentIndex Score
18 records- 0197US4313150ALatching lever for printed circuit boardsNORTHERN TELECOM LTD·Filed 1979·Granted Jan 26, 1982·130 cites·8 claims
- 0297US4029916AMulti-contact push-button switch and plural embodiment for keyboard switch assemblyNORTHERN ELECTRIC CO·Filed 1975·Granted Jun 14, 1977·89 cites·6 claims
- 0393US4486637APushbutton switch assemblyNORTHERN TELECOM LTD·Filed 1982·Granted Dec 4, 1984·47 cites·9 claims
- 0493US3996429AMulti-contact push-button switch having plural prestressed contact members designed to provide plural circuit simultaneous switching inputsNORTHERN ELECTRIC CO·Filed 1975·Granted Dec 7, 1976·70 cites·3 claims
- 0589USD395653STelephone neck setREAD CLIFFORD DEAN·Filed 1995·Granted Jun 30, 1998·46 cites·1 claims
- 0676US4972296AExpandable modular switching unitNORTHERN TELECOM LTD·Filed 1989·Granted Nov 20, 1990·35 cites·7 claims
- 0769US5993251AStaggered FaceplateNORTEL NETWORKS CORP·Filed 1997·Granted Nov 30, 1999·39 cites·20 claims
- 0869US4348559ARotary switch using a flexible circuit memberNORTHERN TELECOM LTD·Filed 1980·Granted Sep 7, 1982·14 cites·6 claims
- 0969US4268726AMultiple cantilever spring contact switchNORTHERN TELECOM LTD·Filed 1979·Granted May 19, 1981·13 cites·20 claims
- 1063USD398927STelephone base stationNORTHERN TELECOM LTD·Filed 1995·Granted Sep 29, 1998·12 cites·1 claims
- 1161US4091244AMultiple contact switchNORTHERN TELECOM LTD·Filed 1977·Granted May 23, 1978·11 cites·7 claims
- 1249US4647729ACircuit board with contact positions, as used for telecommunications terminals and other apparatusNORTHERN TELECOM LTD·Filed 1985·Granted Mar 3, 1987·9 cites·14 claims
- 1344US4709389ATelephone hook switch with elastomeric contact memberNORTHERN TELECOM LTD·Filed 1985·Granted Nov 24, 1987·10 cites·1 claims
- 1444US4218808AHinge having reproducible bearing frictionNORTHERN TELECOM LTD·Filed 1979·Granted Aug 26, 1980·9 cites·9 claims
- 1542USD428659SLightpipeNORTEL NETWORKS CORP·Filed 1998·Granted Jul 25, 2000·4 cites·1 claims
- 1634US5752596ASide operated key actuatorNORTHERN TELECOM LTD·Filed 1996·Granted May 19, 1998·4 cites·8 claims
- 1733US4259558AMultiple cantilever spring contact switchNORTHERN TELECOM LTD·Filed 1979·Granted Mar 31, 1981·3 cites·16 claims
- 1826US4049924APushbutton dialsNORTHERN TELECOM LTD·Filed 1976·Granted Sep 20, 1977·1 cites·10 claims
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