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Inventor

Feng-Cheng Chang

Inventor
San Jose, CA, US

Overview

2→
Patents
1984–2021
Patent span
Human necessities
Primary field (CPC A)

Patents· 2 as inventor

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

A61Bprimary
A61BDiagnosis25%
A61MDevices for introducing media into, or onto, the body25%
A61PSpecific therapeutic activity of chemical compounds or medicinal preparations25%
C07JSteroids25%
PatentTitleYear
11,076,755Endocranial endoscope20214,425,273'Process for production of chenodeoxycholic acid'1984

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1984Patents assigned to CHANG FREDERIC C (1)· patent assignee history
1984Patents assigned to IIDA TAKESHI (1)· patent assignee history
1984Based in Pomona, CA, US· patent location history
2021Patents assigned to CLEARMIND BIOMEDICAL INC (1)· patent assignee history
2021Based in San Jose, CA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CHANG FREDERIC Cself11984
CLEARMIND BIOMEDICAL INC12021
IIDA TAKESHI11984
Locations
LocationPatentsSpan
San Jose, California, US12021
Pomona, California, US11984