For the Inventor, By the Inventor

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Fridley, MN, United States of America

Clear Water Technologies, Inc.

USPTO Granted Patents = 3

% Expired Patents = 33.3

Forward Citations = 69

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4 inventors (with patents filed for the assignee):

Delman R Hogen (1 out of 7 patents)

Timothy T France (1 out of 1 patent)

Mark J Gruenwald (1 out of 1 patent)

4. James D Gruenwald (1 out of 1 patent)

3 patents: Sort by Forward Citations

1. 7527941 - Process for producing ethyl alcohol from cellulosic materials (2009-05-05),

2. 4597692 - Rehabilitated manhole cover (1986-07-01),

3. 4556245 - Carrying handle assembly for a diving tank (1985-12-03),

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USPTO Data Jan 1 1976 - Oct 6 2026

3 Patents

#10 in Fridley, MN

#1,979 in Minnesota

#73,815 in US

Fridley, MN, United States of America

Clear Water Technologies, Inc.

Forward Citations = 69

4 inventors:

Delman R Hogen (1 out of 7 patents)

Timothy T France (1 out of 1 patent)

Mark J Gruenwald (1 out of 1 patent)

4. James D Gruenwald (1 out of 1 patent)

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