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Inventor

Tung Chang Chen

Inventor
Villanova, PA, US

Overview

2→
Patents
1976–1977
Patent span
Physics
Primary field (CPC G)

Patents· 2 as inventor

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

B07Cprimary
B07CPostal sorting25%
G01BMeasuring length, thickness or similar linear dimensions25%
G01NInvestigating or analysing materials by determining their chemical or physical properties25%
G03BApparatus or arrangements for taking photographs or for projecting or viewing them25%
PatentTitleYear
4,064,534'System for monitoring the production of items which are initially difficult to physically inspect'19773,967,106'Device for enabling a fixed sensor of an automatic electronic flash unit to respond to bounced light'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976Patents assigned to CHEN TUNG CHANG (1)· patent assignee history
1976–1977Based in Villanova, PA, US· patent location history
1977Patents assigned to LEONE INTERNATIONAL SALES CORP (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CHEN TUNG CHANGself11976
LEONE INTERNATIONAL SALES CORP11977
Locations
LocationPatentsSpan
Villanova, Pennsylvania, US21976–1977