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For the Inventor, By the Inventor

Washington, DC, United States of America

Lean Flame, Inc.


USPTO Granted Patents = 1

% Expired Patents = 100.0


Forward Citations = 8

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1 inventor (with patents filed for the assignee):

goldMedal Donald W Kendrick (1 out of 30 patents)

silverMedal Anatoly M Rakhmailov (1 patent)


1 patent:

1. 8549862 - Method of fuel staging in combustion apparatus (2013-10-08),
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USPTO Data Jan 1 1976 - Sep 15 2026

1 Patents

#335 in Washington, DC

#335 in District of Columbia

#136,850 in US

Washington, DC (US)
Washington, DC, United States of America

Lean Flame, Inc.

Forward Citations = 8

1 inventor:

goldMedal Donald W Kendrick (1 out of 30 patents)

silverMedal Anatoly M Rakhmailov (1 patent)

Please report any incorrect information to [email protected]
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