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

Howard E. Marshall — 1 Patent

FEFenner: 1 patents #7 of 22Top 35%
Columbia, PA: #89 of 140 inventorsTop 65%
Pennsylvania: #43,533 of 74,527 inventorsTop 60%
Overall (All Time): #2,406,284 of 4,157,543Top 60%
1 Patents All Time
Howard E. Marshall has been granted 1 US patent while listed as an inventor at Fenner. All of these patents were granted in 2000. Howard E. Marshall ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list Howard E. Marshall in Columbia, PA, US.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6062379 Conveyor assembly with compressible layer Randall R. Geib, Michael H. Turek, Susan I. Trafford, Shaun A. Seymour 2000-05-16