DL

David Lapczynski

CU Cubic: 3 patents #73 of 329Top 25%
📍 Tullahoma, TN: #33 of 119 inventorsTop 30%
🗺 Tennessee: #5,688 of 20,272 inventorsTop 30%
Overall (All Time): #1,535,694 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
8856024 Determining companion and joint cards in transit Phillip Dixon 2014-10-07
7624914 Validating removable fare collection system Jeffrey S. Brumfield 2009-12-01
7469817 Validating removable fare collection system Jeffrey S. Brumfield 2008-12-30