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John Ehr — 2 Patents

Farmington, MN: #75 of 165 inventorsTop 50%
Minnesota: #24,068 of 52,454 inventorsTop 50%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
John Ehr has been granted 2 US patents. The first was granted in 2013 and the most recent in February 2015. John Ehr ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list John Ehr in Farmington, MN, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
8955853 Heavy duty single lane trailer system Neil Perkins 2015-02-17
8544867 Tow bar balance system Neil Perkins 2013-10-01

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