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

John E. Cejka — 1 Patent

3M: 1 patents #7,251 of 11,543Top 65%
Hudson, WI: #298 of 466 inventorsTop 65%
Wisconsin: #23,997 of 40,088 inventorsTop 60%
Overall (All Time): #2,406,284 of 4,157,543Top 60%
1 Patents All Time
John E. Cejka has been granted 1 US patent while listed as an inventor at 3M. All of these patents were granted in 2000. John E. Cejka ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list John E. Cejka in Hudson, WI, US.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6106922 Coextruded mechanical fastener constructions Mark R. Dupre, Jeffrey O. Emslander, William H. Hartt, Robert D. Kampfer, Francis V. Loncar, Jr. +8 more 2000-08-22