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

Charles A. Mathna — 5 Patents

3M: 5 patents #2,950 of 11,543Top 30%
Windom, MN: #690 of 2,819 inventorsTop 25%
Minnesota: #13,707 of 52,454 inventorsTop 30%
Overall (All Time): #907,971 of 4,157,543Top 25%
5 Patents All Time
Charles A. Mathna has been granted 5 US patents while listed as an inventor at 3M. The first was granted in 1983 and the most recent in May 2007. Charles A. Mathna ranks #907,971 of 4,157,543 US inventors in our database (top 21.8%). Patent records list Charles A. Mathna in Windom, MN, US.

Patents per Year

Patents granted per year, 1983 to 2007Bar chart with a peak of 1 patents in 1983.peak 11983: 1 patents19831988: 1 patents19881999: 1 patents19992000: 1 patents20002007: 1 patents2007

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
D542022 Bandages pouch Wayne K. Dunshee, Amy J. Krohn 2007-05-08
6090461 Temporary display device John W. Frank 2000-07-18 $24,753,000
5876817 Adhesive clip Mark E. Reeves 1999-03-02 $15,742,000
4729518 Tape dispenser including a backcard with projecting hub parking portions Susan M. Butzer 1988-03-08 $13,979,000
4407932 Fade-resistant and abrasion resistant photographic reproduction, method of preparing, and photographic product therefor Harry A. Loder 1983-10-04 $24,697,000