How to Exercise Your Cat Using a Laser Pointer

A 1995 patent describing the method of using a handheld laser pointer to create a moving light target that encourages cats to run and play.

What it covers

The patent outlines a specific technique for feline exercise. It involves using a handheld laser to project a small, highly-focused, and intense beam of light onto a surface like a wall or floor. The user then moves the laser so the light spot travels in an irregular pattern, which triggers a cat's natural predatory chase instinct. By keeping the light just out of the cat's reach, the user forces the animal to run and jump, providing aerobic exercise.

What it doesn't cover

• —Does not cover the manufacturing of the laser device itself.
• —Does not cover using non-laser light sources, such as flashlights or LED pens.
• —Does not cover automated systems that move the laser without human intervention.
• —Does not cover exercise methods that involve physical toys or physical contact.

The clever bit

The patent identifies the specific speed required to maintain a cat's interest, claiming a range of five to twenty-five feet per second for the light spot's movement.

Why it matters

This patent is a famous example of a simple, everyday activity being codified into intellectual property. While it highlights the intersection of consumer technology and pet care, it is often cited in discussions about the limits of what should be patentable, as it describes a common behavior rather than a complex technological innovation.

Real-world examples

• 1.Standard handheld red laser pointers
• 2.Pet-specific laser toys
• 3.Automated laser cat toys