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For the Inventor, By the Inventor

Redwood City, CA, United States of America

Clean Filtration Technologies, Inc.


USPTO Granted Patents = 2

% Expired Patents = 50.0

Forward Citations = 39

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2 inventors (with patents filed for the assignee):

goldMedal David Levitt (2 out of 9 patents)

silverMedal Frank Dutro (1 out of 3 patents)


2 patents:

1. 7896169 - Hydroclone based fluid filtration system (2011-03-01),
2. 7632416 - Hydroclone based fluid filtration system (2009-12-15),
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USPTO Data Jan 1 1976 - Sep 22 2026

2 Patents

#320 in Redwood City, CA

#20,953 in California

#94,667 in US

Redwood City, CA (US)
Redwood City, CA, United States of America

Clean Filtration Technologies, Inc.

Forward Citations = 39

2 inventors:

goldMedal David Levitt (2 out of 9 patents)

silverMedal Frank Dutro (1 out of 3 patents)

Please report any incorrect information to [email protected]
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