OMS Investments, Inc. has secured a major milestone in the Zoos, Wildlife and Nature Preservation industry with a newly patented device for pest control. This innovation focuses on their latest patent, titled ‘Tamper-resistant rodent bait station’. The patent describes a highly engineered, pre-baited consumer bait station designed to effectively manage rodent populations while safely restricting access to children, pets, and nontarget wildlife.

Overcoming Pest Control Hazards

This breakthrough has proudly won Swanson Reed’s Patent of the Month for January 2026 in the Zoos, Wildlife and Nature Preservation industry. It earned this recognition because it represents an outstanding invention that successfully balances highly effective pest management with crucial environmental, domestic, and non-target wildlife safety.

Patent Abstract

A pre-baited consumer bait station for rodents which is gnaw resistant and has other design features to make the bait station resistant to rodenticide access by children, dogs, other pets, domestic animals, and nontarget wildlife. An injection molded translucent cover is permanently locked to a base about the cover’s edges and center by elastic actuated hooks which engage receptacles on the base. The cover forms a labyrinth joint with a peripheral wall of the base. Double walls on exterior portions of the peripheral wall strengthen the walls where they form part of a closely confining bait receptacle which surrounds a bait block on portions of all sides. Circuitous internal passageways limit access to the bait. An interior wall extends to support the cover center.

Meeting the U.S. R&D Tax Credit Rules

Under the IRS Section 41 Four-Part Test, the development of this tamper-resistant rodent bait station qualifies for the U.S. Research and Development (R&D) Tax Credit through the following criteria:

• Permitted Purpose: The objective was to design a new and substantially improved product—a bait station with enhanced safety features, structural gnaw resistance, and improved functionality via a translucent inspection cover.
• Elimination of Uncertainty: The engineering team faced technical uncertainty regarding how to permanently lock a translucent cover using elastic actuated hooks while maintaining structural integrity against bite forces from non-target animals.
• Process of Experimentation: The company utilized an iterative process, testing multiple CAD designs, labyrinth joint configurations, and double-wall structures to determine the optimal layout that meets safety constraints.
• Technological in Nature: The research fundamentally relied on principles of hard sciences, specifically mechanical engineering, physics, and materials science (injection molding).

3 Practical R&D Applications Qualifying for the Credit

1. Prototyping Labyrinth Joints and Double Walls: Iteratively designing, 3D printing, and stress-testing the labyrinth joint and external double walls to calculate and verify their resistance to the specific bite force (PSI) of non-target domestic animals, like dogs, ensuring the bait receptacle cannot be easily breached.
2. Injection Molding Material Trials: Conducting experimental production runs to discover the exact injection-molding parameters (temperature, pressure, cooling time, and polymer mix) required to manufacture a translucent cover that remains transparent enough for visual bait inspection but durable enough to prevent gnawing damage.
3. Designing Circuitous Passageways: Formulating geometric layouts using CAD software and conducting behavioral trials to optimize the internal passageways. The experimentation aimed to ensure the target rodents could easily navigate the labyrinth to reach the bait, while physically blocking the paws, snouts, or claws of larger pets and non-target wildlife.