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

Robert D. Ahmann — 9 Patents

PEPemstar: 5 patents #1 of 28Top 4%
UNUnknown: 3 patents #7,366 of 83,584Top 9%
MFMayo Foundation: 1 patents #907 of 1,749Top 55%
Rochester, MN: #614 of 3,042 inventorsTop 25%
Minnesota: #8,400 of 52,454 inventorsTop 20%
Overall (All Time): #535,341 of 4,157,543Top 15%
9 Patents All Time
Robert D. Ahmann has been granted 9 US patents while listed as an inventor at Pemstar. The first was granted in 2000 and the most recent in September 2024. Robert D. Ahmann ranks #535,341 of 4,157,543 US inventors in our database (top 12.9%). Patent records list Robert D. Ahmann in Rochester, MN, US.

Patents per Year

Patents granted per year, 2000 to 2024Bar chart with a peak of 2 patents in 2003.peak 22000: 1 patents20002002: 1 patents20022003: 2 patents20032004: 1 patents20042015: 1 patents20152021: 2 patents20212024: 1 patents2024

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12091254 Multi-level tote cache storage and sequencing for improved picker performance 2024-09-17
11142399 Automated warehouse fulfillment system and method of operation David L. Takes, Gregory H. Gasch, William D. Starnes, Neil D. Bultz 2021-10-12
11136192 Automated warehouse fulfillment operations and system David L. Takes, Gregory H. Gasch, William D. Starnes, Neil D. Bultz 2021-10-05
9113956 Isomark tattooing devices James A. Starr, Broc T. Giffey 2015-08-25
6687097 Electrostatic protection for magnetic heads Nathaniel C. Anderson 2004-02-03 $3,244,000
6542218 Photolithographic process for producing etched patterns on the surface of fine tubes, wires, or other three dimensional structures Nathaniel C. Anderson 2003-04-01 $2,497,000
6534974 Magnetic head tester with write coil and read coil Arlen John Bowen, Nathaniel C. Anderson 2003-03-18 $2,636,000
6391502 Photolithographic process for producing etched patterns on the surface of fine tubes, wires or other three dimensional structures Nathaniel C. Anderson 2002-05-21 $1,012,000
6067220 Shunt for protecting a hard file head William Woodrow Brooks, Jr. 2000-05-23