Inventor

HARTFEL MARGARET A

US9 patents

⚠️ This page may combine multiple inventors who share the name “HARTFEL MARGARET A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

3M INNOVATIVE PROPERTIES CO

5 patents

US6820824B1Nov 23, 2004

Apparatus for spraying liquids, disposable containers and liners suitable for use therewith

3M INNOVATIVE PROPERTIES CO232 citations98

US8002200B2Aug 23, 2011

Apparatus for spraying liquids, and disposable containers and liners suitable for use therewith

3M INNOVATIVE PROPERTIES CO19 citations92

US7798421B2Sep 21, 2010

Apparatus for spraying liquids, and disposable containers and liners suitable for use therewith

3M INNOVATIVE PROPERTIES CO14 citations92

US8955770B2Feb 17, 2015

Apparatus for spraying liquids, and adapters and liquid reservoirs suitable for use therewith

3M INNOVATIVE PROPERTIES CO3 citations71

US9211553B2Dec 15, 2015

Apparatus for spraying liquids, and adapters and liquid reservoirs suitable for use therewith

3M INNOVATIVE PROPERTIES CO0 citations50

MINNESOTA MINING & MFG

2 patents

US5491015AFeb 13, 1996

Slip control sheeting and articles covered with same

MINNESOTA MINING & MFG75 citations95

US5234740AAug 10, 1993

Slip control sheeting and articles covered with same

MINNESOTA MINING & MFG56 citations95

JOSEPH STEPHEN C P

2 patents

US8628026B2Jan 14, 2014

Apparatus for spraying liquids, and disposable containers and liners suitable for use therewith

JOSEPH STEPHEN C P4 citations82

US8424780B2Apr 23, 2013

Apparatus for spraying liquids, and adapters and liquid reservoirs suitable for use therewith

JOSEPH STEPHEN C P2 citations71