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Inventor

Charles G. Hwang

Inventor
Wellesley, MA, US

Overview

3→
Patents
1990–2021
Patent span
Human necessities
Primary field (CPC A)

Patents· 3 as inventor

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

A61Mprimary
A61MDevices for introducing media into, or onto, the body33%
A61BDiagnosis17%
A61LMethods or apparatus for sterilising materials or objects in general17%
H03KPulse technique17%
H04LTransmission of digital information, e.g. telegraphic communication17%
PatentTitleYear
11,123,520Collapse-resistant swellable catheter202111,103,170Flash activated passive shielding needle assembly20214,945,264'Interface control circuit with active circuit charge or discharge'1990

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1990Patents assigned to ACER INC (1)· patent assignee history
1990Based in Keelung, TW· patent location history
2021Patents assigned to BECTON DICKINSON CO (2)· patent assignee history
2021Based in Wellesley, MA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
BECTON DICKINSON CO22021
ACER INC11990
Locations
LocationPatentsSpan
Wellesley, Massachusetts, US22021
Keelung, TW11990