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USPTO Patent Rankings Data through Dec 31, 2025
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Bruce E. Field — 2 Patents

TETennant: 2 patents #86 of 188Top 50%
Minneapolis, MN: #2,599 of 6,114 inventorsTop 45%
Minnesota: #24,068 of 52,454 inventorsTop 50%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
Bruce E. Field has been granted 2 US patents while listed as an inventor at Tennant. The first was granted in 1987 and the most recent in September 1991. Bruce E. Field ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Bruce E. Field in Minneapolis, MN, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
5044043 Speed and steering control for a floor maintenance machine Michael T. Basham, Robert M. Berdahl 1991-09-03 $883,000
4709771 Speed and steering control for a floor maintenance machine Michael T. Basham, Robert M. Berdahl 1987-12-01 $1,041,000