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USPTO Patent Rankings Data through Dec 31, 2025
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Christopher C. Murphy — 4 Patents in 2025

PSPsemi: 4 patents #8 of 65Top 15%
Lake Zurich, IL: #3 of 36 inventorsTop 9%
Illinois: #441 of 6,351 inventorsTop 7%
Overall (2025): #35,722 of 469,880Top 8%
4 Patents 2025

Issued Patents 2025

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
12322713 Transient stabilized SOI FETs Robert Mark Englekirk, Keith Bargroff, Tero Tapio Ranta, Simon Edward Willard 2025-06-03
12298798 Controllable temperature coefficient bias circuit Robert Mark Englekirk, Keith Bargroff, Tero Tapio Ranta 2025-05-13
12255588 Cascode amplifier bias circuits Jonathan James Klaren, David Kovac, Eric S. Shapiro, Robert Mark Englekirk, Keith Bargroff +1 more 2025-03-18
12191833 Power amplifier self-heating compensation circuit Tero Tapio Ranta, Keith Bargroff, Robert Mark Englekirk 2025-01-07