DS

Dail L. Swanson

VI Valmont Industries: 5 patents #17 of 137Top 15%
GE: 2 patents #13,562 of 36,430Top 40%
📍 Danville, IL: #6 of 101 inventorsTop 6%
🗺 Illinois: #13,022 of 84,256 inventorsTop 20%
Overall (All Time): #768,001 of 4,157,543Top 20%
7
Patents All Time

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
5068639 Wall box dimmer Raymond Green, Gregory S. Bennorth 1991-11-26
5021714 Circuit for starting and operating fluorescent lamps Shannon Edwards 1991-06-04
5006764 Fluorescent lamp ballast with end connector Larry J. Costa 1991-04-09
5001401 Dual voltage ballast Larry J. Costa 1991-03-19
4916363 Ballast Charles A. Burton, Larry J. Costa 1990-04-10
4644227 Three lamp ballast Edward E. Hammer, Eugene Lemmers 1987-02-17
4399391 Circuit for starting and operating fluorescent lamps Edward E. Hammer, Eugene Lemmers 1983-08-16