Inventor · disambiguated record
Joseph Donaldson
Also filed as: DONALDSON JOSEPH · DONALDSON JOSEPH K
5 granted patents·4 pending applications·85 citations·filing 1999–2008
81Inventor score
Top patents by PatentIndex Score
9 records- 0180US7523557B2Carpenter's pencil sharpenerFLADE LLC·Filed 2005·Granted Apr 28, 2009·10 cites·21 claims
- 0272US6484412B1Non-spill chalk line and measured refill cartridgePENSHAR INC·Filed 2000·Granted Nov 26, 2002·22 cites·20 claims
- 0370US6092293APencil sharpenerFiled 1999·Granted Jul 25, 2000·38 cites·20 claims
- 0457USD420390SPencil sharpenerDONALDSON JOSEPH·Filed 1999·Granted Feb 8, 2000·13 cites·1 claims
- 0552US2009071018A1Method of sharpening a carpenter's pencilFLADE LLC·Filed 2008·Application pending·0 cites
- 0648US2007180713A1Carpenter's pencil sharpenerFLADE LLC·Filed 2007·Application pending·0 cites
- 0742US2005091857A1Carpenter's pencil sharpenerPENSHAR L L C·Filed 2003·Application pending·0 cites
- 0841US2005005459A1Carpenter's pencil sharpenerFiled 2004·Application pending·0 cites
- 0933USD502965SPencil sharpenerFLADE LLC·Filed 2004·Granted Mar 15, 2005·2 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →