Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Steven Chester — 3 Patents

PHPhysio-Control: 1 patents #221 of 303Top 75%
Medtronic: 1 patents #5,240 of 6,367Top 85%
Kirkland, WA: #1,453 of 3,517 inventorsTop 45%
Washington: #28,186 of 76,902 inventorsTop 40%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
Steven Chester has been granted 3 US patents while listed as an inventor at Physio-Control. The first was granted in 2004 and the most recent in December 2025. Steven Chester ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Steven Chester in Kirkland, WA, US.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
12485065 Mechanical CPR device with active backboard Tyson G. Taylor, Sara Lindroth, Alexey Titov, Anders Nilsson, Fred W. Chapman +9 more 2025-12-02
12109424 Medical device battery retention and ejection element Jeremy Edward Brummett, Neal Stanley Clark, Ethan Boehm, Kathy Wang, Alexander Hamilton 2024-10-08
D494681 Portable external defibrillator Dayna M. Mills, Shawn R. Bertagnole, Richard C. Nova 2004-08-17