{"@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [{"@type": "ListItem", "position": 1, "name": "Home", "item": "https://www.patentleaderboard.com/"}, {"@type": "ListItem", "position": 2, "name": "Group14 Technologies", "item": "https://www.patentleaderboard.com/company/group14-technologies"}, {"@type": "ListItem", "position": 3, "name": "David A. Johnson", "item": "https://www.patentleaderboard.com/inventor/fl:da_ln:johnson-114"}]}
Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
DJ

David A. Johnson — 12 Patents

GTGroup14 Technologies: 7 patents #30 of 259Top 15%
BTBridgestone Firestone North American Tire: 1 patents #73 of 133Top 55%
Northwestern University: 1 patents #1,629 of 3,846Top 45%
ONOnlive: 1 patents #7 of 11Top 65%
The Goodyear Tire & Rubber: 1 patents #1,860 of 3,057Top 65%
McFarland, WI: #18 of 123 inventorsTop 15%
Wisconsin: #3,851 of 40,088 inventorsTop 10%
Overall (All Time): #396,045 of 4,157,543Top 10%
12 Patents All Time
David A. Johnson has been granted 12 US patents while listed as an inventor at Group14 Technologies. The first was granted in 2006 and the most recent in February 2024. David A. Johnson ranks #396,045 of 4,157,543 US inventors in our database (top 9.5%). Patent records list David A. Johnson in McFarland, WI, US.

Patents per Year

Patents granted per year, 2006 to 2024Bar chart with a peak of 3 patents in 2015.peak 32006: 2 patents20062008: 1 patents20082009: 1 patents20092015: 3 patents20152016: 1 patents20162017: 3 patents20172024: 1 patents2024

Issued Patents All Time

Showing 1–12 of 12 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11911178 System and method to detect and treat arrhythmogenic regions in atrial fibrillation Markus Rottmann, Rishi Arora, Shin Yoo 2024-02-27 $136,148,000
9675042 System and method for milking stall assignment using real-time location Parimal G. Rajkondawar, Roger K. Erdman, William S. Nelson, Paul D. Thompson, Gary C. Steingraber 2017-06-13
9603342 System and method for health monitoring using real-time location Parimal G. Rajkondawar, Roger K. Erdman, William S. Nelson, Paul D. Thompson 2017-03-28
9603691 System and method for estrus detection using real-time location Parimal G. Rajkondawar, Roger K. Erdman, William S. Nelson, Paul D. Thompson 2017-03-28
9439389 System and method for milking stall assignment using real-time location Parimal G. Rajkondawar, Roger K. Erdman, William S. Nelson, Paul D. Thompson, Gary C. Steingraber 2016-09-13
9044297 System and method for estrus detection using real-time location Parimal G. Rajkondawar, Roger K. Erdman, William S. Nelson, Paul D. Thompson 2015-06-02
8950357 System and method for milking stall assignment using real-time location Parimal G. Rajkondawar, Roger K. Erdman, William S. Nelson, Paul D. Thompson, Gary C. Steingraber 2015-02-10
8949034 System and method for health monitoring using real-time location Parimal G. Rajkondawar, Roger K. Erdman, William S. Nelson, Paul D. Thompson 2015-02-03
7567293 System and method for performing motion capture by strobing a fluorescent lamp Stephen G. Perlman, John Speck, Roger van der Laan 2009-07-28
7377155 Method for approximating tire flat spot decay and magnitude using regressive analysis Neel K. Mani, Michael A. Berzins, Gregg Rasor 2008-05-27
7023680 Transient voltage protection and ground status monitoring apparatus and method Pine Marion Brummett 2006-04-04
7019711 Coupled transponder and antenna system and method Joseph Michael Letkomiller, Richard Stephen Pollack, Robert Leon Benedict 2006-03-28 $4,274,000