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For the Inventor, By the Inventor

Northfield, IL, United States of America

Air Physics Corporation


USPTO Granted Patents = 3

Forward Citations = 109

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3 inventors (with patents filed for the assignee):

goldMedal Judson F Stone (2 out of 2 patents)

silverMedal Harold O Schwartz (1 out of 7 patents)

bronzeMedal Lloyd Murphy (1 out of 1 patent)


3 patents:

1. 5375910 - Seat elevating device (1994-12-27),
2. 4918568 - Air quality control systems (1990-04-17),
3. 4672504 - Electronic generator for air purification (1987-06-09),
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USPTO Data Jan 1 1976 - Oct 6 2026

3 Patents

#17 in Northfield, IL

#3,451 in Illinois

#73,815 in US

Northfield, IL (US)
Northfield, IL, United States of America

Air Physics Corporation

Forward Citations = 109

3 inventors:

goldMedal Judson F Stone (2 out of 2 patents)

silverMedal Harold O Schwartz (1 out of 7 patents)

bronzeMedal Lloyd Murphy (1 out of 1 patent)

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