LexDanaLexDanabeta
Inventor

Tat Wah Wong

Inventor
Hong Kong, CN

Overview

3→
Patents
2014–2020
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 3 as inventor

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

LOC21primary
LOC2133%
A63HToys, e.g. tops, dolls, hoops or building blocks17%
F41BWeapons for projecting missiles without use of explosive or combustible propellant charge17%
F42BExplosive charges, e.g. for blasting, fireworks, ammunition17%
F42CAmmunition fuzes17%
PatentTitleYear
10,603,597Article ejection structure2020D0798960'Flying toy unicorn'2017D0697145'Flying toy'2014

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2014–2020Patents assigned to SPIN MASTER LTD (3)· patent assignee history
2014Based in Shatin, HK· patent location history
2017–2020Based in Hong Kong, CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SPIN MASTER LTD32014–2020
Locations
LocationPatentsSpan
Hong Kong, CN22017–2020
Shatin, HK12014