Slick Slide LLC v. Edwin L. Reed and Chad L. Reeves

CourtDistrict Court, D. Colorado
DecidedDecember 17, 2025
Docket1:23-cv-01649
StatusUnknown

This text of Slick Slide LLC v. Edwin L. Reed and Chad L. Reeves (Slick Slide LLC v. Edwin L. Reed and Chad L. Reeves) is published on Counsel Stack Legal Research, covering District Court, D. Colorado primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
Slick Slide LLC v. Edwin L. Reed and Chad L. Reeves, (D. Colo. 2025).

Opinion

IN THE UNITED STATES DISTRICT COURT FOR THE DISTRICT OF COLORADO Judge Charlotte N. Sweeney

Civil Action No. 1:23-cv-01649-CNS-NRN

SLICK SLIDE LLC,

Plaintiff,

v.

EDWIN L. REED and CHAD L. REEVES,

Defendants.

ORDER

Before the Court are the parties’ summary judgment motions and Plaintiff Slick Slide LLC’s (Slick Slide’s) expert exclusion motion. ECF Nos. 75–77. The Court DENIES Slick Slide’s exclusion motion. ECF No. 75. The Court GRANTS IN PART and DENIES IN PART Slick Slide’s partial summary judgment motion. ECF No. 76. The Court GRANTS the Reed Defendants’ summary judgment motion. ECF No. 77. In doing so, the Court presumes familiarity with this case’s factual and procedural background, the parties’ briefing, and the governing legal standards. See Fed. R. Civ. P. 56; Fed. R. Evid. 702. I. ANALYSIS A. Slick Slide’s Exclusion Motion Slick Slide moves to exclude the report and testimony of Defendants’ expert Nathan MacDonald. See, e.g., ECF No. 75 at 1. In doing so, Slick Slide challenges only Mr. McDonald’s qualifications, arguing that Mr. MacDonald is unqualified to serve as an expert. See id. at 5 (“MacDonald is not qualified as a designer of slides.” (citation modified)); id. at 6 (“That Mr. MacDonald is an engineer and has been involved in the design of products generally is not sufficient to qualify him to testify in a design patent infringement case, on the issue of obviousness, with respect to . . . slides.”) The Court disagrees. The parties recite the controlling legal standard, with which the Court presumes familiarity. See, e.g., ECF No. 75 at 3; ECF No. 80 at 6; Banks v. Munir, No. 1:20–cv– 03729–CNS–MDB, 2023 WL 2914811, at *2 (D. Colo. Apr. 12, 2023). And given that Slick

Slide challenges only Mr. MacDonald’s expert qualifications, see ECF No. 75 at 5, the Court focuses its exclusion analysis there, explaining why exclusion on this basis is improper. Slick Slide argues that “Mr. MacDonald is not qualified to offer an opinion regarding obviousness” because he “has never designed a slide, the subject matter of the ‘821 patent, as well as the subject matter of both references that he suggests could be combined.” ECF No. 75 at 5. Slick Slide further argues that Mr. MacDonald is only a “general engineering consultant,” id. with limited engineering experience that fundamentally—and, from Slick Slide’s perspective, fatally—lacks slide design, id. at 6– 7.

The Court agrees with Defendants the record makes clear that Mr. MacDonald has the “necessary qualifications to testify as an ‘ordinary designer’” in this case. ECF No. 80 at 8. Mr. MacDonald is a registered Professional Engineer, see ECF No. 80-1 at 4, with over twelve years of mechanical engineering consultant experience, see id., and who has numerous relevant certifications and licenses, id. at 36. His professional experience includes “tak[ing] part in the design, manufacture, and review of numerous products, including ziplines, drop rides, slingshot rides, alpine slides, alpine coasters, roller coasters, water slides, rope swing slides, pendulum swing rides, and more.” ECF No. 80- 1 at 4. He has served as the lead engineer on numerous projects, including “ziplines, exercise equipment . . . aerial lifts, and other hydraulic pneumatic, and electronic equipment,” id. at 34, and has extensive experience with amusement rides and devices, id.

If Mr. MacDonald’s declaration, report, and curriculum vitae were insufficient to demonstrate his qualifications to opine as an expert in this matter—and they are sufficient to do so—his deposition testimony provides confirmation of his qualifications. See generally ECF No. 80-2. Mr. MacDonald testified he has “actually done a couple of . . . safety review[s]” for waterslides,” id. at 20–21 (citation modified), and that as a “result of [his] education, [his] training and [his] experience and because [he] knows enough,” including “what standards [a slide] has to meet [and] how to do all the structural analysis and the testing that’s required for [the slide]” that he “would have no issue doing” a slide design “whatsoever,” id. at 27. See also Hart v. City of La Junta, No. 1:23–cv–00134– DDD–MDB, 2025 WL 981556, at *1 (D. Colo. Mar. 19, 2025) (“[T]he language of Rule

702 and Tenth Circuit precedent make clear that the ‘specialized knowledge’ required for expert testimony ‘can be acquired through ‘experience’ and ‘training.’” (citation modified)). At bottom, the Court agrees with Defendants that they have met their burden of showing Mr. MacDonald is qualified as an expert. This is not a case, contrary to Slick Slide’s contention, where Mr. MacDonald has “admitted inexperience and unfamiliarity with the very subject” of this lawsuit. Sport Dimension, Inc. v. Coleman Co., 820 F.3d 1316, 1323 (Fed. Cir. 2016) (emphasis added); see also ECF No. 75 at 4 (citing Sport Dimension, 820 F.3d at 1323). Nor is this a circumstance where Mr. MacDonald offers “nothing more than his generalized experience as” a mechanical engineer. Dorman Prods., Inc. v. Paccar, Inc., 201 F. Supp. 3d 663, 688 (E.D. Pa. 2016), as amended (Oct. 17, 2016) (emphases added); see also ECF No. 75 at 7 (citing Dorman Products, 201 F.

Supp. 3d at 688–89). Cf. Sundance, Inc. v. DeMonte Fabricating Ltd., 550 F.3d 1356, 1363 (Fed. Cir. 2008) (“Testimony proffered by a witness lacking the relevant technical expertise fails the standard of admissibility under Fed. R. Evid. 702.”); ECF No. 80 at 11. Finally, to the extent that the exclusion motion challenges Mr. MacDonald’s specialized knowledge “with respect to the subject matter of this particular case—slides,” ECF No. 75 at 6, or the obviousness of the ‘821 patent, “questions regarding the extent of an expert’s specialized knowledge in a field go to the weight of the expert’s testimony, not to its admissibility.” Raytheon Co. v. United States, No. 05–448C, 2009 WL 1373959, at *1 (Fed. Cl. May 13, 2009) (citation modified); Hart, 2025 WL 981556, at *1 (“[A]s long as an expert stays within the reasonable confines of his subject area, our case law

establishes a lack of specialization does not affect the admissibility of the expert opinion, but only its weight.” (citation modified)); Pineda v. Ford Motor Co., 520 F.3d 237, 245 (3d Cir. 2008). Cf. ECF No. 82 at 4–7. Slick Slide is free to cross-examine Mr. MacDonald at trial as to his qualifications and opinions. See, e.g., Daubert v. Merrell Dow Pharms., Inc., 509 U.S. 579, 596 (1993) (“Vigorous cross-examination, presentation of contrary evidence, and careful instruction on the burden of proof are the traditional and appropriate means of attacking shaky but admissible evidence.” (citation modified)). Accordingly, and for the reasons set forth above, the Court denies Slick Slide’s exclusion motion. ECF No. 75. B. Slick Slide’s Partial Summary Judgment Motion Slick Slide moves for partial summary judgment “on several issues relating to the patent infringement claims: patent infringement, patent validity, and patent enforceability.”

ECF No. 76 at 1.

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