Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
DM

Donald E. Mathieson — 1 Patent

SPSpartus: 1 patents #25 of 60Top 45%
Peru, IL: #21 of 41 inventorsTop 55%
Illinois: #49,230 of 84,256 inventorsTop 60%
Overall (All Time): #2,406,284 of 4,157,543Top 60%
1 Patents All Time
Donald E. Mathieson has been granted 1 US patent while listed as an inventor at Spartus. All of these patents were granted in 1983. Donald E. Mathieson ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list Donald E. Mathieson in Peru, IL, US.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4388002 Connector for arrangement for a-c. clock mechanism Anthony W. Rigazio, Paul E. Hawkinson 1983-06-14