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

John E. Blumer — 3 Patents

DIDempster Industries: 3 patents #2 of 7Top 30%
Beatrice, NE: #24 of 53 inventorsTop 50%
Nebraska: #1,418 of 5,697 inventorsTop 25%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
John E. Blumer has been granted 3 US patents while listed as an inventor at Dempster Industries. The first was granted in 1984 and the most recent in March 1988. John E. Blumer ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list John E. Blumer in Beatrice, NE, US.

Patents per Year

Patents granted per year, 1984 to 1988Bar chart with a peak of 1 patents in 1984.peak 11984: 1 patents19841985: 1 patents19851988: 1 patents1988

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
D294583 Tender Richard J. Ehmke 1988-03-08
D279921 Washdown sprayer tank Richard J. Ehmke, Arthur F. Linsenmeyer 1985-07-30
4469210 Rotary chute for spreader Arthur F. Linsenmeyer 1984-09-04