For the Inventor, By the Inventor

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Fort Wayne, IN, United States of America

American Hearth Systems, Inc.

USPTO Granted Patents = 2

CIPO Patents = 1

Trademarks = 1

Forward Citations = 14

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4 inventors (with patents filed for the assignee):

Corbit Beasey (2 out of 2 patents)

Christopher L Flick (2 out of 2 patents)

David M Christensen (1 out of 7 patents)

4. Robert B Zahm (1 out of 1 patent)

2 patents: Sort by Forward Citations

1. 6463926 - Direct vent fireplace with baffled, directional exhaust and vent air column (2002-10-15),

2. 6003507 - Gas heater having firebox with controllable outside air mixing vent (1999-12-21),

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USPTO Data Jan 1 1976 - Dec 16 2025

2 Patents

#87 in Fort Wayne, IN

#1,315 in Indiana

#92,554 in US

Fort Wayne, IN, United States of America

American Hearth Systems, Inc.

Forward Citations = 14

4 inventors:

Corbit Beasey (2 out of 2 patents)

Christopher L Flick (2 out of 2 patents)

David M Christensen (1 out of 7 patents)

4. Robert B Zahm (1 out of 1 patent)

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