Breathing Trainer Device Full-Stack Development

I'm in need of an experienced full-stack developer to create a mechanical oral breathing trainer device. The finished product must be simplistic, yet functional, boasting two key features:

• Adjustable resistance levels: To help the user gradually improve their breathing effectiveness.

• Compact and portable design: Making it usable anytime, anywhere, specifically aimed for athletes and fitness enthusiasts.

In addition to development, I need assistance in conducting utility and design patent checks to guarantee the design legality in the United States. A thorough understanding of patent laws and previous experience performing such checks are highly desirable for this project. This will minimize potential conflicts and ensure we can bring this valuable tool to market smoothly. Your expertise will play an integral role in successfully completing this project.

Please look at attachments too see what we are aiming for.