DF

Donald J. Felkner

📍 Olathe, KS: #424 of 991 inventorsTop 45%
🗺 Kansas: #4,268 of 12,005 inventorsTop 40%
Overall (All Time): #2,315,717 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
D317977 Case for a calculator, or the like James R. Famuliner 1991-07-09
5006699 System for collecting medical data James R. Famuliner 1991-04-09