Company Filing History:
1 out of 4 
1 out of 832,812 Years Active: 1987-1988
Title: The Innovative Mind of Robert Mainhardt
Introduction
Robert Mainhardt is a notable inventor based in Danville, California. He has made significant contributions to the field of self-defense and projectile technology. With a total of 2 patents, Mainhardt's inventions reflect his commitment to safety and innovation.
Latest Patents
One of Mainhardt's latest patents is a safe and effective self-defense device. This device includes a container that holds a non-toxic deterrent fluid mixture. The container is designed as a thin-walled, manually-collapsible squeeze bottle, equipped with a nozzle and a closure cap. The user can easily eject the deterrent mixture using one hand. The mixture itself contains a surfactant lachrymatory agent, a food-grade dye, and an olfactory agent.
Another significant invention by Mainhardt is a versatile gun capable of firing various projectiles. This gun features a barrel that can be easily disconnected from the stock. It is designed to accommodate standard gauge shotgun shells and can fire both centerfire and rimfire rounds. Additionally, the gun includes inserts that allow for the firing of rockets and utilizes an inertial firing pin in conjunction with a floating breech plate. A dual-action spring drive is also incorporated to manage recoil effectively.
Career Highlights
Throughout his career, Robert Mainhardt has worked with various companies, including Trebor Incorporated. His experience in these organizations has contributed to his innovative approach to invention and design.
Collaborations
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Conclusion
Robert Mainhardt's inventive spirit and dedication to safety are evident in his patents. His contributions to self-defense and projectile technology showcase his ability to innovate and address real-world challenges.