Inventor
Francis Y. Hung
Inventor
Kanata, CA
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H02Hprimary
H02HEmergency protective circuit arrangements27%
H04MTelephonic communication27%
B24BMachines, devices, or processes for grinding or polishing9%
H01CResistors9%
H01LSemiconductor devices9%
H01TSpark gaps9%
H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h109%
PatentTitleYear
10,600,634Semiconductor substrate polishing methods with dynamic control20205,155,649'Surge protector for telecommunications equipment'19924,991,051'Protection arrangements for communications lines'19914,849,846'Telephone protection circuit'19894,709,296'Protection arrangement for a telephone subscriber line interface circuit'1987Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1987–1992Patents assigned to NORTHERN TELECOM LTD (4)· patent assignee history
1987–1991Based in Kanata, CA· patent location history
1992Based in Ontario, CA· patent location history
2020Patents assigned to GLOBALWAFERS CO LTD (1)· patent assignee history
2020Patents assigned to SUNEDISON SEMICONDUCTOR LTD UEN201334164H (1)· patent assignee history
2020Based in New Taipei, TW· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| NORTHERN TELECOM LTD | 4 | 1987–1992 |
| GLOBALWAFERS CO LTD | 1 | 2020 |
| SUNEDISON SEMICONDUCTOR LTD UEN201334164H | 1 | 2020 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kanata, CA | 3 | 1987–1991 |
| New Taipei, TW | 1 | 2020 |
| Ontario, CA | 1 | 1992 |