For the Inventor, By the Inventor

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Stamford, CT, United States of America

Denver Chemical Manufacturing Company

USPTO Granted Patents = 2

Forward Citations = 28

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6 inventors (with patents filed for the assignee):

Walter Greenfield (1 out of 4 patents)

H Eric Hunter (1 out of 3 patents)

Donald R Landers (1 out of 1 patent)

4. Peter D Tukey (1 out of 1 patent)

5. Edward A Gianos (1 out of 1 patent)

6. Edgar A Lazo-Wasem (1 out of 1 patent)

2 patents: Sort by Forward Citations

1. 4035294 - Pressure differential filtering device and method (1977-07-12),

2. 4014653 - Micro-filter (1977-03-29),

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USPTO Data Jan 1 1976 - Dec 16 2025

2 Patents

#157 in Stamford, CT

#1,720 in Connecticut

#92,554 in US

Stamford, CT, United States of America

Denver Chemical Manufacturing Company

Forward Citations = 28

6 inventors:

Walter Greenfield (1 out of 4 patents)

H Eric Hunter (1 out of 3 patents)

Donald R Landers (1 out of 1 patent)

4. Peter D Tukey (1 out of 1 patent)

5. Edward A Gianos (1 out of 1 patent)

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