Polygroup Limited McO v. Willis Electric Company, Ltd.

Court of Appeals for the Federal Circuit·Decided January 19, 2022·No. 21-1401·Unpublished

Opinion

NOTE: This disposition is nonprecedential.

United States Court of Appeals for the Federal Circuit

POLYGROUP LIMITED MCO,

Appellant

v.

WILLIS ELECTRIC COMPANY, LTD., Appellee

2021-1401, 2021-1402

Appeals from the United States Patent and Trademark Office, Patent Trial and Appeal Board in Nos. IPR2016- 00800, IPR2016-00801, IPR2016-01609, IPR2016-01610, IPR2016-01611, IPR2016-01612.

Decided: January 19, 2022

DOUGLAS SALYERS, Troutman Pepper Hamilton Sanders LLP, Atlanta, GA, argued for appellant. Also represented by PUJA PATEL LEA; ROBERT A. ANGLE, CHRISTOPHER FORSTNER, Richmond, VA.

PATRICK M. ARENZ, Robins Kaplan LLP, Minneapolis, MN, argued for appellee. Also represented by BRENDA L. JOLY, EMILY ELIZABETH NILES, RONALD JAMES SCHUTZ.

2 POLYGROUP LIMITED MCO v. WILLIS ELECTRIC COMPANY, LTD.

Before DYK, HUGHES, and STOLL, Circuit Judges. Opinion for the court filed by Circuit Judge HUGHES.

Opinion concurring-in-part and dissenting-in-part filed by Circuit Judge STOLL.

HUGHES, Circuit Judge.

This is a patent case involving lighted artificial trees.

Polygroup Limited MCO appeals from the final written decision of the Patent Trial and Appeal Board in an inter partes review upholding the patentability of claims 7, 10, 11, 16–22, 25, 26, and 28 of U.S. Patent No. 8,454,186 and claims 1–3, 5–9, 11, 12, 14, and 15 of U.S. Patent No. 8,454,187. With respect to every claim except claim 7 of the ’186 patent, we reverse the Board’s determination that Polygroup failed to establish the unpatentability of the challenged claims. We conclude that the Board applied erroneous claim constructions and that, under the proper constructions, Miller teaches every limitation of claims 10, 11, 16–22, 25, 26, and 28 of the ’186 patent and claims 1– 3, 5–9, 11, 12, 14, and 15 of the ’187 patent. Polygroup has, therefore, established that these claims are unpatentable.

For claim 7 of the ’186 patent, the Board exceeded the scope of our remand when it considered a combination of Miller and Lessner. We therefore vacate and remand its decision with regard to claim 7 of the ’186 patent.

I

A

Willis Electric Company, Ltd. owns the ’186 and ’187 patents, both of which are “directed to lighted artificial trees having separable, modular tree portions mechanically and electrically connectable between trunk portions.” ’186 patent 1:16–19; ’187 patent 1:15–18. The trunk portions house connector assemblies containing electrical wiring and electrical connectors that provide a source of electricity for light strings. ’186 patent 11:4–7, 11:57–67,

POLYGROUP LIMITED MCO v. WILLIS ELECTRIC COMPANY, LTD. 3

14:65–67. The connector assemblies “are securely positioned within their respective trunk sections” and designed to “permit the electrical connection of the connectors at any rotational orientation about a vertical axis,” thus simplifying tree assembly. Id. 15:1–6, 15:45–59.

The patents share much of the same specification and their independent claims follow a common pattern, disclosing components of a first tree portion, components of a second tree portion, and—pertinent to this appeal—how those tree portions connect to each other. Claim 10 of the ’186 patent is representative and is reproduced below.

10. A lighted artificial tree, comprising:

a first tree portion including a first trunk portion , a first plurality of branches joined to the first trunk portion, and a first light string, the first trunk portion having a first trunk body and a trunk connector, at least a portion of the trunk connector housed within the first trunk body and electrically connected to the first light string; a second tree portion including a second trunk portion, a second plurality of branches joined to the second trunk portion, and a second light string, the second trunk portion having a first trunk body and a trunk connector, at least a portion of the trunk connector housed within the second trunk portion and electrically connected to the second light string; and wherein the second tree portion is mechanically and electrically connectable to the first tree portion by coupling a lower end of the second trunk body to an upper end of the first trunk body along a common vertical axis at a rotational orientation of the first trunk portion relative the second trunk portion about the common 4 POLYGROUP LIMITED MCO v. WILLIS ELECTRIC COMPANY, LTD.

vertical axis, thereby causing the trunk connector of the first trunk portion to make an electrical connection with the trunk connector of the second trunk portion within an interior of the lighted artificial tree, the electrical connection being made independent of the rotation orientation of the first trunk portion relative the second trunk portion about the common vertical axis.

’186 patent 22:33–60 (emphasis added as by the Board at Appx21–22). Polygroup petitioned for and the Board instituted inter partes review of claims 1, 3, 4, 6–9, 11, 15–22, 25, 26, and 28 of the ’186 patent and claims 1–15 of the ’187 patent.

For every challenged claim, Polygroup relied on U.S.

Patent No. 4,020,201 (Miller) as a primary reference for obviousness . Miller discloses an artificial tree “wherein the lighting system wiring is essentially housed and concealed within the trunk members” that are “removably sleeved together .” Miller 1:5–6, 1:30–32. Miller uses a traditional plug and socket electrical connector within its hollow trunk to form an electrical connection between light strings. Appx11, 15.

The Board initially found that Polygroup had failed to prove by a preponderance of the evidence that any of the challenged claims were unpatentable. On appeal, we affirmed the Board’s decision with respect to claim 15 of the ’186 patent and claims 4, 10, and 13 of the ’187 patent. Polygroup Ltd. MCO v. Willis Elec. Co., Ltd., 759 F. App’x 934, 936 (Fed. Cir. 2009) (Polygroup I). But we vacated the Board’s patentability determinations on the remaining claims because “the Board [had] applied erroneous claim constructions and [had] refused to consider Polygroup’s arguments that a single reference renders many of the claims obvious.” Id. We therefore instructed the Board to consider on remand “Polygroup’s arguments based on

POLYGROUP LIMITED MCO v. WILLIS ELECTRIC COMPANY, LTD. 5

Miller . . . alone and whether those claims are unpatentable under a proper construction.” Id.

B

On remand, the Board found that Polygroup had established by a preponderance of the evidence that claims 1, 3, 4, 6, 8, and 9 of the ’186 patent are unpatentable in view of Miller alone, 1 but had failed to establish the same for the remaining challenged claims—specifically, claims 7, 10, 11, 16–22, 25, 26, and 28 of the ’186 patent and claims 1–3, 5– 9, 11, 12, 14, and 15 of the ’187 patent.

1

Willis contended, and the Board agreed, that Miller “requires the separate steps of making an electrical connection between the first and second trunk members and making a mechanical connection between the trunk members.” 2 Appx13–14, 23. Thus, the dispositive consideration, according to the Board, was whether the claims “require that the mechanical connection between the tree/trunk portions results in the electrical connections.” Appx21, 24.

The Board found that independent claim 1 of the ’186 patent had no such requirement, based on its reading of the following “wherein” clause:

wherein the second tree portion is mechanically coupleable to the first tree portion about a central vertical axis, and the second tree portion is electrically connectable to the first tree portion such that a portion of the first trunk electrical connector of the first trunk portion contacts a portion of the second trunk electrical connector of the second trunk

1 The Board’s decision with respect to the patentability of claims 1, 3, 4, 6, 8, and 9 of the ’186 patent has not been challenged on appeal and is final.

2 Polygroup does not dispute this.

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