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

Mark R. Kercheval — 1 Patent

EEEnvironmental Elements: 1 patents #10 of 31Top 35%
Hanover, MD: #34 of 79 inventorsTop 45%
Maryland: #19,590 of 35,612 inventorsTop 60%
Overall (All Time): #2,406,284 of 4,157,543Top 60%
1 Patents All Time
Mark R. Kercheval has been granted 1 US patent while listed as an inventor at Environmental Elements. All of these patents were granted in 1987. Mark R. Kercheval ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list Mark R. Kercheval in Hanover, MD, US.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4655804 Hopper gas distribution system Lawrence W. Fickus 1987-04-07