Inventor · disambiguated record
Hsing-Ching Liu
Also filed as: LIU HSING-CHING
9 granted patents·280 citations·filing 1975–1978
87Inventor score
Files withLIU HSING CHING9
Top patents by PatentIndex Score
9 records- 0196US4027402ANovel educational toyLIU HSING CHING·Filed 1976·Granted Jun 7, 1977·204 cites·8 claims
- 0284US4043241AMusical shoeLIU HSING CHING·Filed 1976·Granted Aug 23, 1977·44 cites·5 claims
- 0369US3994078AEducational toy clock with actionLIU HSING CHING·Filed 1975·Granted Nov 30, 1976·19 cites·3 claims
- 0434US4182052AEducational toyLIU HSING CHING·Filed 1978·Granted Jan 8, 1980·3 cites·10 claims
- 0531US4118877AEducational toyLIU HSING CHING·Filed 1977·Granted Oct 10, 1978·2 cites·9 claims
- 0630US4135313AEducational toy with actionLIU HSING CHING·Filed 1977·Granted Jan 23, 1979·2 cites·2 claims
- 0730US4033051AEducational toyLIU HSING CHING·Filed 1975·Granted Jul 5, 1977·2 cites·4 claims
- 0830US4024650AEducational toyLIU HSING CHING·Filed 1976·Granted May 24, 1977·2 cites·9 claims
- 0930US4012849AEducational quiz and answer toyLIU HSING CHING·Filed 1975·Granted Mar 22, 1977·2 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →