Inventor

CHIANG WEN-TSAI

TW3 patents

⚠️ This page may combine multiple inventors who share the name “CHIANG WEN-TSAI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

(unassigned)

1 patent

USD464175SOct 8, 2002

Safety helmet

15 citations76

UNITED ROYAL SPORTS INC

1 patent

US9357811B2Jun 7, 2016

Head circumference adjustment device of a helmet

UNITED ROYAL SPORTS INC11 citations73

CHIANG WEN TSAI

1 patent

US11525263B2Dec 13, 2022

Combined structure of the combined bundle of columns in the column

CHIANG WEN TSAI2 citations57