David Johnson has been granted 4 US patents while listed as an inventor at Sandia . The first was granted in 1999 and the most recent in April 2025. David Johnson ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list David Johnson in Somerville, MA, US.
Patents per Year Patents granted per year, 1999 to 2025 Bar chart with a peak of 1 patents in 1999. peak 1 1999: 1 patents 1999 2002: 1 patents 2002 2007: 1 patents 2007 2025: 1 patents 2025
Issued Patents All Time
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Showing 1–4 of 4 patents
Patent # Title Co-Inventors Date Approx Value ⓘ
12265587 Systems and method for investigating relationships among entities Emily Brooks Pavlini , Jason Rastrick Briggs , Max Kleiman-Weiner , John R. Frank , Tyler Balensiefer +12 more 2025-04-01
7286894 Hand-held computer device and method for interactive data acquisition, analysis, annotation, and calibration Wayne Clinton Grant , Paulo Raffaelli , Rhonda L. Rosales 2007-10-23
6389418 Patent data mining method and apparatus Kevin W. Boyack , V. Gerald Grafe , Brian N. Wylie 2002-05-14
$16,450,000
5987470 Method of data mining including determining multidimensional coordinates of each item using a predetermined scalar similarity value for each item pair Charles Evan Meyers , George S. Davidson , Bruce A. Hendrickson , Brian N. Wylie 1999-11-16
$14,584,000
