Inventor · disambiguated record
Donald A. Walker
Also filed as: WALKER DONALD · WALKER DONALD A
5 granted patents·131 citations·filing 1976–2013
83Inventor score
Top patents by PatentIndex Score
5 records- 0191US8618941B2Systems and methods of interaction with water usage informationJAVEY SHAHRAM·Filed 2010·Granted Dec 31, 2013·47 cites·19 claims
- 0289US9552143B2Systems and methods of interaction with water usage informationBADGER METER INC·Filed 2013·Granted Jan 24, 2017·13 cites·21 claims
- 0386US4375339AElectrically conductive ribbon break detector for printersIBM·Filed 1980·Granted Mar 1, 1983·39 cites·14 claims
- 0477US4396308ARibbon guiding for thermal lift-off correctionIBM·Filed 1981·Granted Aug 2, 1983·23 cites·5 claims
- 0560US4101905AMethod for writing and viewing magnetic human readable characters and viewing means thereforNCR CO·Filed 1976·Granted Jul 18, 1978·9 cites·17 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →