Inventor · disambiguated record
William Keith Richardson
Also filed as: RICHARDSON WILLIAM K · RICHARDSON WILLIAM KEITH
6 granted patents·88 citations·filing 2002–2007
83Inventor score
Technology areasG03G
Files withLEXMARK INT INC6
Top patents by PatentIndex Score
6 records- 0192US7747180B2Methods and apparatuses for determining the number of printed pages remaining in a toner cartridgeLEXMARK INT INC·Filed 2007·Granted Jun 29, 2010·16 cites·25 claims
- 0288US7769306B2Storing printer density control parameters in cartridge memoryLEXMARK INT INC·Filed 2005·Granted Aug 3, 2010·12 cites·12 claims
- 0387US6718147B1Toner measurement and darkness control using printer systemsLEXMARK INT INC·Filed 2002·Granted Apr 6, 2004·29 cites·17 claims
- 0485US6819884B1Determining toner usageLEXMARK INT INC·Filed 2003·Granted Nov 16, 2004·26 cites·21 claims
- 0552US7463836B2System, method and print cartridge for signaling user replacement of fuser wiperLEXMARK INT INC·Filed 2005·Granted Dec 9, 2008·1 cites·3 claims
- 0649US6701097B1Movement tracking by time and scaling for start and stopLEXMARK INT INC·Filed 2002·Granted Mar 2, 2004·4 cites·16 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →