For the Inventor, By the Inventor

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Milwaukee, WI, United States of America

Great Lakes Instruments, Inc.

USPTO Granted Patents = 3

Forward Citations = 86

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4 inventors (with patents filed for the assignee):

Karl L King (2 out of 3 patents)

Bruce W Weiss (1 out of 32 patents)

Robert W Endl (1 out of 1 patent)

4. William J Popp (1 out of 1 patent)

3 patents: Sort by Forward Citations

1. 5693204 - Passive pH adjustment for analytical instruments (1997-12-02),

2. 5140168 - Turbidimeter signal processing circuit using alternating light sources (1992-08-18),

3. 5059811 - Turbidimeter having a baffle assembly for removing entrained gas (1991-10-22),

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USPTO Data Jan 1 1976 - Jan 20 2026

3 Patents

#199 in Milwaukee, WI

#1,469 in Wisconsin

#72,234 in US

Milwaukee, WI, United States of America

Great Lakes Instruments, Inc.

Forward Citations = 86

4 inventors:

Karl L King (2 out of 3 patents)

Bruce W Weiss (1 out of 32 patents)

Robert W Endl (1 out of 1 patent)

4. William J Popp (1 out of 1 patent)

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