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Inventor

Hsien-Tang Tsai

Inventor
Taipei, TW

Overview

6→
Patents
1992–2021
Patent span
Human necessities
Primary field (CPC A)

Patents· 6 as inventor

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

A01Kprimary
A01KAnimal husbandry43%
H05BElectric heating29%
C07CAcyclic or carbocyclic compounds14%
F04BPositive-displacement machines for liquids14%
PatentTitleYear
10,968,159Method for manufacturing terephthalic acid20215,711,656'Aquarium pump having silencing effect'19985,392,380'Thermostatically controlled electric aquarium heater having an adjustable overtemperature safety bimetallic circuit breaker'1995D0339356'Aquarium pump'19935,137,432'Noise-preventative aquarium pump'19925,113,057'Doubly-controlled aquarium safety heater'1992

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1992Patents assigned to TSAI HSIEN TANG (2)· patent assignee history
1992–1995Based in Taipei, TW· patent location history
1993Patents assigned to TSAI HSIEN-TANG (1)· patent assignee history
1998Based in Taichung, TW· patent location history
2021Patents assigned to FAR EASTERN NEW CENTURY CORP (1)· patent assignee history
2021Based in Taoyuan, TW· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
TSAI HSIEN TANGself21992
FAR EASTERN NEW CENTURY CORP12021
TSAI HSIEN-TANGself11993
Locations
LocationPatentsSpan
Taipei, TW41992–1995
Taoyuan, TW12021
Taichung, TW11998