Inventor · disambiguated record
Allan Chiwan Cheung
Also filed as: CHEUNG ALLAN CHIWAN
4 granted patents·163 citations·filing 1995–1999
81Inventor score
Technology areasH04N
Files withLEXMARK INT INC4
Top patents by PatentIndex Score
4 records- 0183US5973803ACombined color halftoningLEXMARK INT INC·Filed 1997·Granted Oct 26, 1999·75 cites·12 claims
- 0272US6363172B1Combined color halftoningLEXMARK INT INC·Filed 1999·Granted Mar 26, 2002·39 cites·19 claims
- 0360US6307647B1Digital halftoning with error diffusionLEXMARK INT INC·Filed 1995·Granted Oct 23, 2001·24 cites·16 claims
- 0460US5930010AMethod and apparatus for color halftoning using different halftoning techniques for halftoning different dot planesLEXMARK INT INC·Filed 1996·Granted Jul 27, 1999·25 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →