Mountain-bike innovation runs deep in Colorado — a mix of famous patented suspension designs, homegrown technology, and high-profile, multi-million-dollar intellectual-property disputes playing out in the state's courts.
1 · Spot Brand vs. Gates Corp.
Golden-based Spot Brand sued Denver-based Gates Corp. in Denver District Court over the "Drop-Out" frame feature — the patented split dropout that lets a seamless carbon drive belt pass into the rear triangle. Spot seeks millions in unpaid royalties, alleging Gates encouraged other brands to use the invention without compensating Spot. A Denver judge has denied Gates' attempts to invalidate the patent and throw out the royalty contract, clearing the way to trial. The patent, invented by a former Spot co-owner, was assigned to Gates in a 2008 agreement that later expired.
2 · Canfield Balance Formula (CBF)
Developed by engineers Lance and Chris Canfield, US Patent 9,061,729 protects the CBF suspension system, which balances the center-of-curvature directly above the chainring to maintain consistent pedal force and keep the suspension active independent of drivetrain or braking forces. After the brothers' split, Chris Canfield's Suspension Formulas (Colorado-based) licenses CBF to local brands like Revel Bikes, headquartered in Carbondale, CO.
3 · Fox Factory vs. SRAM
Colorado served as the battleground for a multi-year suspension-patent fight between Fox Factory and SRAM after the case was transferred to the U.S. District Court in Colorado; proceedings later narrowed when the Patent Trial and Appeal Board (PTAB) invalidated several of Fox's specific claims. Note that this is a matter of court jurisdiction — neither Fox (headquartered in Duluth, GA, with engineering offices in Colorado) nor SRAM (Chicago, IL) is actually headquartered in Colorado. Fox continues to file component patents, such as a braided-mesh "Fiber Core" grip.
Shown on cards involving Colorado-connected brands. This is background context, not legal advice.