Inventor · disambiguated record
Ruth E. Mitchener Keffer
Also filed as: MITCHENER KEFFER RUTH E
5 granted patents·112 citations·filing 2013–2017
83Inventor score
Files withBLACK & DECKER INC5
Top patents by PatentIndex Score
5 records- 0198US9156147B2Quick change bit holder with ring magnetBLACK & DECKER INC·Filed 2013·Granted Oct 13, 2015·35 cites·12 claims
- 0297US10150205B2Fastening tools with floating magnet sleevesBLACK & DECKER INC·Filed 2016·Granted Dec 11, 2018·30 cites·20 claims
- 0395US10040179B2Fastener tool assembliesBLACK & DECKER INC·Filed 2015·Granted Aug 7, 2018·10 cites·26 claims
- 0495US9227309B2Quick change bit holder with ring magnetBLACK & DECKER INC·Filed 2013·Granted Jan 5, 2016·26 cites·16 claims
- 0592US10556329B2Tool bits with floating magnet sleevesBLACK & DECKER INC·Filed 2017·Granted Feb 11, 2020·11 cites·21 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →