Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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John K. Schaefer — 2 Patents

FIFike: 2 patents #32 of 83Top 40%
Gladstone, MO: #22 of 67 inventorsTop 35%
Missouri: #8,937 of 23,789 inventorsTop 40%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
John K. Schaefer has been granted 2 US patents while listed as an inventor at Fike. The first was granted in 2005 and the most recent in February 2011. John K. Schaefer ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list John K. Schaefer in Gladstone, MO, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
7878215 Impulse actuated valve Mark Wesley McLelland, Bradford T. Stilwell, Bon F. Shaw, Michael D. Krebill, Devang Patel 2011-02-01
6889775 Retrofitted non-Halon fire suppression system and method of retrofitting existing Halon based systems Bon F. Shaw, Bradford T. Stilwell, Paul Kohne 2005-05-10