DJ

Donald Charles Francis, Jr.

SD Square D: 2 patents #240 of 756Top 35%
📍 Cedar Rapids, IA: #478 of 1,358 inventorsTop 40%
🗺 Iowa: #4,661 of 15,303 inventorsTop 35%
Overall (All Time): #1,639,686 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5817998 Circuit breaker with handle locking device Randall L. Siebels, Douglas Van Waart 1998-10-06
5808249 Circuit breaker with improved impact resistance Randall L. Siebels, Brett Larson 1998-09-15
5772479 Circuit breaker with terminal nut retainer Dennis W. Fleege, Randall L. Siebels 1998-06-30