Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
CS

Charles Stone — 5 Patents

FEFrequency Electronics: 5 patents #1 of 8Top 15%
Cedar Park, TX: #381 of 1,158 inventorsTop 35%
Texas: #28,633 of 125,132 inventorsTop 25%
Overall (All Time): #907,971 of 4,157,543Top 25%
5 Patents All Time
Charles Stone has been granted 5 US patents while listed as an inventor at Frequency Electronics. The first was granted in 1992 and the most recent in September 2006. Charles Stone ranks #907,971 of 4,157,543 US inventors in our database (top 21.8%). Patent records list Charles Stone in Cedar Park, TX, US.

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
7106143 Method for achieving highly reproducible acceleration insensitive quartz crystal oscillators Martin Bloch, Oleandro Mancini 2006-09-12 $861,000
6753737 Precision oven-controlled crystal oscillator John Chen Chiang Ho, Thomas McClelland 2004-06-22 $1,008,000
6577201 Precision oven-controlled crystal oscillator John Chen Chiang Ho, Thomas McClelland 2003-06-10 $956,000
5309116 Multimode crystal oscillator 1994-05-03 $361,000
5160901 Multimode crystal oscillator 1992-11-03 $346,000