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For the Inventor, By the Inventor

Concord, CA, United States of America

Life Measurement Instruments


USPTO Granted Patents = 2

Trademarks = 2

Forward Citations = 18

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2 inventors (with patents filed for the assignee):

goldMedal Philip T Dempster (2 out of 13 patents)

silverMedal John Payne (1 out of 2 patents)


2 patents:

1. 6202468 - Apparatus and method for the determination of the relative proportions of gases (2001-03-20),
2. 5105825 - Method and apparatus for volume measurement and body composition (1992-04-21),
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USPTO Data Jan 1 1976 - Dec 16 2025

2 Patents

#54 in Concord, CA

#20,546 in California

#92,651 in US

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Concord, CA, United States of America

Life Measurement Instruments

Forward Citations = 18

2 inventors:

goldMedal Philip T Dempster (2 out of 13 patents)

silverMedal John Payne (1 out of 2 patents)

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