Company: May Manufacturing, LLC

Patent Number: 12697275
Patent Title: Modular framing system for spas, hot tubs, and other large water containment vessels

Innovation Behind the Patent

The recently granted patent describes a highly adaptable modular construction system designed specifically for swim spas, hot tubs, and other large water containment vessels. Traditional hot tub framing often relies on monolithic supports or large prefabricated elements that can be cumbersome and difficult to modify. In contrast, this new system utilizes lightweight and low-cost polymeric materials configured as standardized interchangeable components. It features keyed vertical members that attach securely to cooperating grooves in horizontal rails. These horizontal rails then connect to specialized corner brackets via keyed projections, while a retaining member fastens to a groove in the horizontal rail to secure an integrated protective bottom sheet. This structural engineering approach allows manufacturers and installers to create infinitely configurable frames without the need for specialized tooling, which improves manufacturing efficiency and on-site adaptability.

Nevada State Patent of the Month

In recognition of its contribution to manufacturing and structural engineering, this invention has been awarded the Nevada State Patent of the Month for September 2026 by Swanson Reed. The award highlights the ingenuity of creating a modular system that addresses common industry challenges, such as accommodating various plumbing and electrical configurations while maintaining the structural integrity required to safely hold thousands of gallons of water. Swanson Reed recognized the patent for its practical approach to reducing material costs and simplifying assembly processes, representing a meaningful advancement for the manufacturing sector in Nevada.

R&D Tax Credit Eligibility

The practical applications of this patent present strong potential for Research and Development (R&D) tax credit eligibility in the United States. Developing this modular framing system required overcoming technical uncertainties related to structural engineering, polymer performance under continuous stress, and the long-term effects of moisture and elevated temperatures. The iterative testing of the keyed connections, the evaluation of different polymeric composites for strength and durability, and the prototyping of standardized components to support heavy water vessels all constitute qualified research activities. Companies that invest in such systematic experimentation to improve product performance, reliability, and manufacturing processes can leverage the R&D tax credit to offset the financial costs associated with these technological advancements.