Legal Opinion
Middleton, Inc. v. Minnesota Mining and Manufacturing Company (Now Known as 3m Company)
Court of Appeals for the Federal Circuit
Decided January 9, 2003No. 02-1151PublishedCited by 82 opinions
1Opinion of the Court
RADER, Circuit Judge.
On summary judgment, the United States District Court for the Northern District of Illinois ruled that Minnesota Mining and Manufacturing Co. (3M) did not infringe Middleton, Inc.’s U.S. Patent No. 4,944,514 ('514 patent), either literally or under the doctrine of equivalents. Because the district court failed to correctly construe the claims and determine whether prosecution history barred Middleton from relying on the doctrine of equivalents, this court reverses and remands.
I
Middleton owns the '514 patent entitled “Floor Finishing Material and Method.” The patent claims…
2Cases cited17 opinions
- Anderson v. Liberty Lobby, Inc.Supreme Court of the United States · 1986
- MARKMAN Et Al. v. WESTVIEW INSTRUMENTS, INC., Et Al.Supreme Court of the United States · 1996
- Herbert Markman and Positek, Inc. v. Westview Instruments, Inc. And Althon Enterprises, Inc.Court of Appeals for the Federal Circuit · 1995
- Vitronics Corporation v. Conceptronic, Inc.Court of Appeals for the Federal Circuit · 1996
- Cybor Corporation v. Fas Technologies, Inc., and Fastar Ltd., Defendants-CrossCourt of Appeals for the Federal Circuit · 1998
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3Cited by82 opinions
- Innova/pure Water, Inc. v. Safari Water Filtration Systems, Inc. (Doing Business as Safari Outdoor Products)Court of Appeals for the Federal Circuit · 2004
- Metabolite Laboratories, Inc. And Competitive Technologies, Inc. v. Laboratory Corporation of America Holdings (Doing Business as Labcorp)Court of Appeals for the Federal Circuit · 2004
- Alloc, Inc. v. International Trade CommissionCourt of Appeals for the Federal Circuit · 2003
- 3m Innovative Properties Company and Minnesota Mining and Manufacturing Company v. Avery Dennison CorporationCourt of Appeals for the Federal Circuit · 2004
- Wavetronix v. EIS Electronic Integrated SystemsCourt of Appeals for the Federal Circuit · 2009
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