Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Douglas C. Eisold — 1 Patent

TETrex Enterprises: 1 patents #32 of 60Top 55%
San Diego, CA: #15,804 of 23,606 inventorsTop 70%
California: #249,524 of 386,348 inventorsTop 65%
Overall (All Time): #2,406,284 of 4,157,543Top 60%
1 Patents All Time
Douglas C. Eisold has been granted 1 US patent while listed as an inventor at Trex Enterprises. All of these patents were granted in 2009. Douglas C. Eisold ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list Douglas C. Eisold in San Diego, CA, US.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
7515041 Disaster alert device and system Brent R. Perkins, Paul Johnson, Paul Fairchild, Keneth Y. Tang 2009-04-07 $3,373,000