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Inventor

Yun-Chuan Chang

Inventor
Taipei, TW

Overview

4→
Patents
2001–2002
Patent span
Performing operations
Primary field (CPC B)

Patents· 4 as inventor

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

B62Kprimary
B62KCycles50%
B62MRider propulsion of wheeled vehicles or sledges17%
F16FSprings17%
Y10TTechnical subjects covered by former us classification17%
PatentTitleYear
6,419,255'Driving structure between front and rear wheels of a vehicle'20026,341,768'Structure of torsion shock absorber'20026,299,186'Antishock structure of scooter'20016,279,930'Structure of scooter'2001

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2001–2002Based in Taipei, TW· patent location history
2001Based in Chung-Ho City, Taipei Hsien, TW· patent location history
2002Based in Taoyuan, TW· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Locations
LocationPatentsSpan
Taipei, TW22001–2002
Taoyuan, TW12002
Chung-Ho City, Taipei Hsien, TW12001