Inventor

Chi-Wen Hung

Inventor
San Rafael, CA, US

Overview

20→
Patents
1984–2021
Patent span
Chemistry
Primary field (CPC C)

Patents· 20 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

B01Jprimary
B01JChemical or physical processes, e.g. catalysis or colloid chemistry26%
C10GCracking hydrocarbon oils21%
C07CAcyclic or carbocyclic compounds12%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h1012%
Y02PClimate change mitigation technologies in the production or processing of goods7%
H10DInorganic electric semiconductor devices5%
H10HInorganic light-emitting semiconductor devices having potential barriers5%
A61MDevices for introducing media into, or onto, the body2%
G11CStatic stores2%
H01LSemiconductor devices2%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1984–1985Patents assigned to UOP INC (5)· patent assignee history
1984–1993Based in San Rafael, CA, US· patent location history
1988–1989Patents assigned to CHEVRON RES (3)· patent assignee history
1992–1993Patents assigned to CHEVRON RES & TECH (6)· patent assignee history
2005–2010Patents assigned to HARVATEK CORP (4)· patent assignee history
2005–2010Based in Chung-Li, TW· patent location history
2009–2021Based in Hsinchu, TW· patent location history
2015Patents assigned to HUNG CHI-WEN (1)· patent assignee history
2015Based in Changhua County, TW· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CHEVRON RES & TECH61992–1993
UOP INC51984–1985
HARVATEK CORP42005–2010
CHEVRON RES31988–1989
HUNG CHI-WENself12015
Locations
LocationPatentsSpan
San Rafael, California, US141984–1993
Chung-Li, TW32005–2010
Hsinchu, TW22009–2021
Changhua County, TW12015