% Expired Patents = 75.0

Forward Citations = 32

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1 inventor (with patents filed for the assignee):

Robert T Stone (4 out of 29 patents)

4 patents: Sort by Forward Citations

1. 6443908 - Method and apparatus for in vivo measurement of carbon monoxide production rate (2002-09-03),

2. 6368289 - Acoustic coupling device (2002-04-09),

3. 6368288 - Acoustic coupling device (2002-04-09),

4. D444237 - Ear coupler (2001-06-27),

Kinderlife Instruments, Inc. is a leading manufacturer of high-quality musical instruments for children. Founded in 2005, we are dedicated to providing safe, durable, and engaging instruments that inspire young musicians. Our product range includes xylophones, tambourines, drums, and more, designed to foster creativity and a love for music in kids. Visit our website to explore our collection and bring the joy of music to your child's life.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

4 Patents

#450 in Mountain View, CA

#14,041 in California

#60,597 in US

Mountain View, CA, United States of America

Kinderlife Instruments, Inc.

Forward Citations = 32

1 inventor:

Robert T Stone (4 out of 29 patents)

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