Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Doug Langhorst — 1 Patent

SHSheller-Globe: 1 patents #15 of 40Top 40%
Zeeland, MI: #201 of 350 inventorsTop 60%
Michigan: #50,030 of 86,293 inventorsTop 60%
Overall (All Time): #2,406,284 of 4,157,543Top 60%
1 Patents All Time
Doug Langhorst has been granted 1 US patent while listed as an inventor at Sheller-Globe. All of these patents were granted in 1992. Doug Langhorst ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list Doug Langhorst in Zeeland, MI, US.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5093394 Thermoformable acoustical mat composition and method John Lee Rees 1992-03-03