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USPTO Patent Rankings Data through Dec 31, 2025
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Ed Twitchell — 5 Patents

Harris: 5 patents #352 of 2,461Top 15%
Quincy, IL: #38 of 184 inventorsTop 25%
Illinois: #18,025 of 84,256 inventorsTop 25%
Overall (All Time): #907,971 of 4,157,543Top 25%
5 Patents All Time
Ed Twitchell has been granted 5 US patents while listed as an inventor at Harris. The first was granted in 2000 and the most recent in January 2002. Ed Twitchell ranks #907,971 of 4,157,543 US inventors in our database (top 21.8%). Patent records list Ed Twitchell in Quincy, IL, US.

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
6335766 System and method for transmitting advanced television signals Bob Davis, David Christopher Danielsons, Bob Plonka, Dave Nickell 2002-01-01
6281935 System and method for controlling a transmitter frequency Bob Davis, David Christopher Danielsons, Bob Plonkn 2001-08-28 $6,014,000
6269125 System and method for trellis encoding a digital signal Joseph Lee Seccia 2001-07-31 $19,016,000
6185255 System and Method for exciting advanced television signals Bob Davis, Paul Mizwicki, Joseph Lee Seccia, Dave Nickell 2001-02-06 $4,322,000
6055021 System and method for obtaining synchronization to a digital frame 2000-04-25 $11,549,000