Samuel Stamping Technologies, LLC v. Therma-Tru Corp.

District Court, N.D. Ohio·Decided May 29, 2025·No. 3:20-cv-01011·Unknown

Opinion

UNITED STATES DISTRICT COURT FOR THE NORTHERN DISTRICT OF OHIO WESTERN DIVISION

Samuel Stamping Technologies, LLC, Case No. 3:20-cv-1011

Plaintiff,

v. MEMORANDUM OPINION AND ORDER

Therma-Tru Corp.,

Defendant.

I. INTRODUCTION Plaintiff Samuel Stamping Technologies, LLC (“SST”), asserts three causes of action for patent infringement against Defendant Therma-Tru Corp, alleging violations of 35 U.S.C. § 271(a). (Doc. No. 1). Therma-Tru previously challenged SST’s patents as unenforceable because they were indefinite. I set the case for a jury trial on that limited issue, (Doc. No. 47), and the jury returned verdicts in favor of SST. (Doc. Nos. 70, 71, and 72). Pursuant to my order, the parties have filed supplemental claim construction briefs, as well as briefs in response to the opposing side’s claim construction brief. (Doc. Nos. 101, 102, 103, and 104). II. STANDARD In construing terms contained in a patent claim, a court must give those terms their “ordinary and customary meaning,” which is the meaning “the term would have to a person of ordinary skill in the art in question at the time of the invention . . . .” Phillips v. AWH Corp., 415 F.3d 1303, 1313 (Fed. Cir. 2005). The “primary resources” for determining that meaning are the claims, the remaining portions of the patent, and the patent’s prosecution history – “together, the intrinsic evidence of the meaning of the claims.” Finisar Corp. v. DirecTV Group, Inc., 523 F.3d 1323, 1329 (Fed. Cir. 2008) (citing Phillips, 415 F.3d at 1318). “A design patent protects the nonfunctional aspects of an ornamental design as shown in the patent.” Elmer v. ICC Fabricating, Inc., 67 F.3d 1571, 1577 (Fed. Cir. 1995) (citing KeyStone Retaining Wall Sys., Inc. v. Westrock, Inc., 997 F.2d 1444, 1450 (Fed. Cir. 1993)). While “trial courts have a duty to conduct claim construction in design patent cases, as in utility patent cases, . . . the preferable

course ordinarily will be for a district court not to attempt to ‘construe’ a design patent by providing a detailed verbal description of the claimed design.” Egyptian Goddess, Inc. v. Swisa, Inc., 543 F.3d 665, 679 (Fed. Cir. 2008) (citing Elmer, 67 F.3d at 1577). See also Sport Dimension, Inc. v. Coleman Co., 820 F.3d 1316, 1320 (Fed. Cir. 2016) (“Words cannot easily describe ornamental designs. . . . [A design] claim ‘is better represented by the photographic illustration than it could be by any description, and a description would probably not be intelligible without the illustration[.]’”) (quoting Dobson v. Dornan, 118 U.S. 10, 14 (1886)). III. DISCUSSION SST holds three patents for ornamental door skin designs: U.S. Design Patent No. D557,427 (the “D427 patent”); U.S. Design Patent No. D625,023 (the “D023 patent”); and U.S. Design Patent No. D635,276 (the “D276 patent”) (collectively, the “SST Patents”). (Doc. No. 1 at 3). It alleges Therma-Tru produces doors with door skins that infringe upon the SST patents. (Id. at 4). The parties propose competing definitions to be adopted during the claim construction process:

Samuel Stamping Technologies Therma-Tru Corp. D427 Patent “An ornamental design for a high “An ornamental design for a high definition two panel door skin, as definition two panel door skin as shown shown and described. The ornamental and described in the ’427 Patent, design includes, among other elements, including the specific shape of the door a recessed profile, the shape of which skin recessed profile (the complex is shown in Figures 5 and 6.” pattern of convex, concave, linear, and arcuate regions of the profile) shown in Figures 5-6. The size and shape of the door skin perimeter and the size, shape, and placement of the panels are purely functional features dictated by industry standards and practice.” D023 Patent “An ornamental design for a high “An ornamental design for a high definition door skin with soft arch, as definition door skin as shown and shown and described. The ornamental described in the ’023 Patent, including design includes, among other elements, the specific shape of the door skin a recessed profile, the shape of which recessed profile (the complex pattern of is shown in Figures 6–8.” convex, concave, linear, and arcuate regions of the profile) as shown in Figures 6-8. The size and shape of the door skin perimeter and the size, shape, and placement of the panels are purely functional features dictated by industry standards and practice.” D276 Patent “An ornamental design for a high “An ornamental design for a high definition door skin with soft arch and definition two panel door skin as shown V-grooves, as shown and described. and described in the D’276 Patent, The ornamental design includes, including the specific shape of the door among other elements, a recessed skin recessed profile (the complex profile, the shape of which is shown in pattern of convex, concave, linear, and Figures 6–8, and V-grooves, the shape arcuate regions of the profile) as shown of which is shown in Figures 9–10.” in Figures 6-8, and the specific shape of the V-grooves (the two claimed angled planar elements) shown in Figures 9-10. The width of the recessed profile is “approximately the same width as each space created between the side [recessed profile] and adjacent grooves, and the width of each space created between adjacent grooves.” The size and shape of the door skin perimeter and the size, shape, and placement of the panels are purely functional features dictated by industry standards and practice.”

(Doc. No. 101 at 2; Doc. No. 102 at 13-14). The Federal Circuit has held that “[w]here a design contains both functional and non- functional elements, the scope of the claim must be construed in order to identify the non- functional aspects of the design as shown in the patent.” OddzOn Prods., Inc. v. Just Toys, Inc., 122 F.3d 1396, 1405 (Fed. Cir. 1997) (citation omitted). I adopt the following descriptions of the claimed designs to supplement the illustrations contained in the patents: - D427 Patent – An ornamental design for a high-definition two panel door skin, as shown and described. The ornamental design includes a recessed profile, the shape of which is shown in Figures 5 and 6, and the size, shape, and placement of the door panels. - D023 Patent – An ornamental design for a high-definition door skin with a soft arch, as shown and described. The ornamental design includes a recessed profile, the shape of which is shown in Figures 6 through 8, and the size, shape, and placement of the door panels. - D476 Patent – An ornamental design for a high-definition door skin with a soft arch and V-grooves, as shown and described. The ornamental design includes a recessed profile, the shape of which is shown in Figures 6 through 8, and V-grooves, the shape of which is shown in Figures 9 and 10. The ornamental design also includes the size, shape, and placement of the door panels. Therma-Tru raises a number of objections to SST’s proposed claim construction for all three patents, which are substantially similar to the claim constructions I have adopted.

Free access — add to your briefcase to read the full text and ask questions with AI

Samuel Stamping Technologies, LLC v. Therma-Tru Corp., (N.D. Ohio 2025).

Samuel Stamping Technologies, LLC v. Therma-Tru Corp. (Samuel Stamping Technologies, LLC v. Therma-Tru Corp.) — published by Counsel Stack Legal Research, free access to 12M+ legal documents.

Related