Inventor
Kai-Shun Mak
Inventor
Kwai Chung, HK
Overview
Patents· 26 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
LOC21primary
LOC2133%
LOC1927%
B43LArticles for writing or drawing upon20%
A63HToys, e.g. tops, dolls, hoops or building blocks7%
LOC067%
LOC127%
PatentTitleYear
D0591801'Toy drawing board'20096,805,559'Erasable graphic panel'2004D0467971'Toy drawing board'2002D0443304'Toy drawing board'20016,092,294'Drawing board'2000D0427649'Toy drawing table'20006,045,341'Levitation blower'2000D0419599'Toy drawing board'2000D0419190'Toy drawing board'2000D0411865'Toy building element'1999D0409687'Toy building element'1999D0399680'Table for educational games'1998D0391531'Baby walker'1998D0390284'Disc shooter'1998D0359985'Drawing board'1995D0359984'Drawing board'1995D0358608'Drawing board'1995D0356824'Drawing board'1995D0356336'Drawing board'1995D0356335'Drawing board'19955,393,231'Child\'s magic drawing board'1995D0345177'Drawing board'1994D0336751'Drawing board'1993D0309759'Toy bubble gun'1990D0279490'Drawing toy'1985D0279489'Drawing toy'1985Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1985–1998Patents assigned to HOP LEE CHEONG IND CO LTD (8)· patent assignee history
1985–2002Based in New Territories, HK· patent location history
1994–2004Based in Kwai Chung, HK· patent location history
1995–2009Patents assigned to HOP LEE CHEONG IND COMPANY LTD (7)· patent assignee history
1995–2009Based in Kowloon, HK· patent location history
1995–2000Based in Hong Kong, CN· patent location history
1995Based in Kwai Chung, New Territories, HK· patent location history
1998–2000Patents assigned to HOP LEE CHEONG INDUSTRIAL COMPANY LTD (3)· patent assignee history
1999Patents assigned to HOP LEE CHEONG INDUSTRIAL LTD (2)· patent assignee history
2000Patents assigned to HOP LEE CHEONG IND COMPANY LIM (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HOP LEE CHEONG IND CO LTD | 8 | 1985–1998 |
| HOP LEE CHEONG IND COMPANY LTD | 7 | 1995–2009 |
| HOP LEE CHEONG INDUSTRIAL COMPANY LTD | 3 | 1998–2000 |
| HOP LEE CHEONG IND COMPANY LIM | 2 | 2000 |
| HOP LEE CHEONG INDUSTRIAL LTD | 2 | 1999 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kwai Chung, HK | 11 | 1994–2004 |
| New Territories, HK | 5 | 1985–2002 |
| Kowloon, HK | 4 | 1995–2009 |
| Hong Kong, CN | 3 | 1995–2000 |
| Kwai Chung, New Territories, HK | 2 | 1995 |