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USPTO Patent Rankings Data through Sept 30, 2025
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Robert G. Walker — 5 Patents in 2021

PHPhysio-Control: 5 patents #1 of 55Top 2%
Seattle, WA: #183 of 4,505 inventorsTop 5%
Washington: #630 of 13,672 inventorsTop 5%
Overall (2021): #28,294 of 548,734Top 6%
5 Patents 2021

Issued Patents 2021

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
11166628 Laryngoscope with handle-grip activated recording Fred W. Chapman 2021-11-09
11064932 Intravenous line flow sensor for advanced diagnostics and monitoring in emergency medicine Barry D. Curtin 2021-07-20
10945661 Physiological feedback systems and methods Fred W. Chapman 2021-03-16
10950341 Integration of a point-of-care blood analyzer into a prehospital telemedicine system Tyson G. Taylor, Alexander Esibov, Mitchell A. Smith 2021-03-16
10905344 System and method for electrocardiogram analysis and optimization of cardiopulmonary resuscitation and therapy delivery Joseph L. Sullivan, Ronald E. Stickney, Daniel W. Piraino, Isabelle Banville, Fred W. Chapman 2021-02-02