PD

Paul J. Duff

CA Carrier: 3 patents #6 of 96Top 7%
📍 Racine, WI: #2 of 71 inventorsTop 3%
🗺 Wisconsin: #51 of 1,957 inventorsTop 3%
Overall (1994): #9,881 of 165,921Top 6%
3
Patents 1994

Issued Patents 1994

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5327742 Hierarchial control for discrete chiller units Keith G. Michaelsen 1994-07-12
5309727 Reactive control for discrete chiller units Keith G. Michaelsen 1994-05-10
5301513 Monitoring and control of chiller units Keith G. Michaelsen 1994-04-12