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Forward Citations = 269

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8 inventors (with patents filed for the assignee):

Paul E Sigafus (3 out of 6 patents)

James W Ratz (3 out of 10 patents)

Larry L Lutton (3 out of 3 patents)

4. Ralph H Torborg (2 out of 2 patents)

5. Dennis S Gambiana (1 out of 1 patent)

6. Bradford L Blankenship (1 out of 1 patent)

7. Nickolas G Vrionis (1 out of 8 patents)

8. Ronald L Eichorn (1 out of 2 patents)

5 patents: Sort by Forward Citations

1. 7293718 - Variable output heating and cooling control (2007-11-13),

2. 7075255 - Variable speed controller for a family of multi-tap motors (2006-07-11),

3. 6866202 - Variable output heating and cooling control (2005-03-15),

4. 6864659 - Variable speed controller for air moving applications using an AC induction motor (2005-03-08),

5. 6504338 - Constant CFM control algorithm for an air moving system utilizing a centrifugal blower driven by an induction motor (2003-01-07),

Varidigm Corporation is a leading provider of smart energy management solutions. We specialize in helping commercial and industrial clients optimize their energy usage and reduce costs through innovative technology and data-driven strategies. Our comprehensive suite of products and services includes energy monitoring systems, demand response solutions, and energy conservation measures. With a focus on sustainability and efficiency, Varidigm is committed to helping organizations achieve their energy management goals.

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USPTO Data Jan 1 1976 - Dec 9 2025

5 Patents

#75 in Plymouth, MN

#1,385 in Minnesota

#50,164 in US

Plymouth, MN, United States of America

Varidigm Corporation