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

David J. Shelander — 6 Patents

PRPrintware: 2 patents #3 of 9Top 35%
Lockheed Martin: 2 patents #1,607 of 6,507Top 25%
Windom, MN: #571 of 2,819 inventorsTop 25%
Minnesota: #11,902 of 52,454 inventorsTop 25%
Overall (All Time): #779,687 of 4,157,543Top 20%
6 Patents All Time
David J. Shelander has been granted 6 US patents while listed as an inventor at Printware. The first was granted in 1990 and the most recent in September 2014. David J. Shelander ranks #779,687 of 4,157,543 US inventors in our database (top 18.8%). Patent records list David J. Shelander in Windom, MN, US.

Patents per Year

Patents granted per year, 1990 to 2014Bar chart with a peak of 1 patents in 1990.peak 11990: 1 patents19901991: 1 patents19911996: 1 patents19962012: 1 patents20122013: 1 patents20132014: 1 patents2014

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
8838228 Systems and methods for reducing the proliferation of microorganisms Arthur A. Beisang, Andrew Kirchoff 2014-09-16
8485566 Door with mount and lock structures for mission critical enclosures Jeffrey M. Borning, Scott M. Ralston, Nathan E. Stremick, John A. Holst 2013-07-16 $16,403,000
8164886 Ruggedized display enclosure Jeffrey M. Borning 2012-04-24 $11,312,000
5539488 Rotary shutter Paul Erickson, Paul A. Richardson, John Evers 1996-07-23
4992655 Self-resonant galvanometer scanning system with evacuated chamber 1991-02-12
4899048 Focused optical beam encoder of position 1990-02-06