Inventor · disambiguated record
Margaret A. Hartfel
Also filed as: HARTFEL MARGARET A
9 granted patents·1 pending application·405 citations·filing 1991–2014
91Inventor score
Top patents by PatentIndex Score
10 records- 0198US6820824B1Apparatus for spraying liquids, disposable containers and liners suitable for use therewith3M INNOVATIVE PROPERTIES CO·Filed 1998·Granted Nov 23, 2004·232 cites·6 claims
- 0293US8002200B2Apparatus for spraying liquids, and disposable containers and liners suitable for use therewith3M INNOVATIVE PROPERTIES CO·Filed 2009·Granted Aug 23, 2011·19 cites·17 claims
- 0389US5491015ASlip control sheeting and articles covered with sameMINNESOTA MINING & MFG·Filed 1992·Granted Feb 13, 1996·75 cites·28 claims
- 0489US5234740ASlip control sheeting and articles covered with sameMINNESOTA MINING & MFG·Filed 1991·Granted Aug 10, 1993·56 cites·14 claims
- 0585US7798421B2Apparatus for spraying liquids, and disposable containers and liners suitable for use therewith3M INNOVATIVE PROPERTIES CO·Filed 2007·Granted Sep 21, 2010·14 cites·5 claims
- 0680US8955770B2Apparatus for spraying liquids, and adapters and liquid reservoirs suitable for use therewith3M INNOVATIVE PROPERTIES CO·Filed 2013·Granted Feb 17, 2015·3 cites·29 claims
- 0776US8424780B2Apparatus for spraying liquids, and adapters and liquid reservoirs suitable for use therewithJOSEPH STEPHEN C P·Filed 2012·Granted Apr 23, 2013·2 cites·33 claims
- 0875US8628026B2Apparatus for spraying liquids, and disposable containers and liners suitable for use therewithJOSEPH STEPHEN C P·Filed 2011·Granted Jan 14, 2014·4 cites·33 claims
- 0965US9211553B2Apparatus for spraying liquids, and adapters and liquid reservoirs suitable for use therewith3M INNOVATIVE PROPERTIES CO·Filed 2014·Granted Dec 15, 2015·0 cites·29 claims
- 1050US2007299708A1Field of interest analysis method, tools and system3M INNOVATIVE PROPERTIES CO·Filed 2006·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →