Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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David Barr — 4 Patents

ATAT&T: 2 patents #7,295 of 18,772Top 40%
Blue Earth, MN: #2 of 13 inventorsTop 20%
Minnesota: #16,016 of 52,454 inventorsTop 35%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
David Barr has been granted 4 US patents while listed as an inventor at AT&T. The first was granted in 1981 and the most recent in January 2023. David Barr ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list David Barr in Blue Earth, MN, US.

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11570248 Highly redundant and scalable storage area network architecture John Hawkins, Charles Baiamonte, David A. Daniel, John Kile, Ronald Stephens +1 more 2023-01-31 $44,527,000
10944823 Highly redundant and scalable storage area network architecture John Hawkins, Charles Baiamonte, David A. Daniel, John Kile, Ronald Stephens +1 more 2021-03-09 $51,091,000
4306490 Fan mount for grain drying and storage bin Daniel Kallestad 1981-12-22
4281489 Floor support for grain drying and storage bin Daniel Kallestad 1981-08-04