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Inventor

Karen Wan

Inventor
Shanghai, CN

Overview

3→
Patents
2007–2020
Patent span
Human necessities
Primary field (CPC A)

Patents· 3 as inventor

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

A47Jprimary
A47JKitchen equipment33%
G06FElectric digital data processing33%
LOC0733%
PatentTitleYear
D0876869Beverage maker202010,463,188Airlift pumping mechanism as well as fluid container and brewing machine with such airlift pumping mechanism20197,236,040'Method and apparatus for generating multiphase clocks'2007

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2007Patents assigned to ATI TECHNOLOGIES INC (1)· patent assignee history
2007Based in Tai Kok Tsui, HK· patent location history
2019–2020Patents assigned to KEYWAY INNOVATIONS SHANGHAI COMPANY LTD (2)· patent assignee history
2019–2020Based in Shanghai, CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
KEYWAY INNOVATIONS SHANGHAI COMPANY LTD22019–2020
ATI TECHNOLOGIES INC12007
Locations
LocationPatentsSpan
Shanghai, CN22019–2020
Tai Kok Tsui, HK12007