Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Edward Carroll — 4 Patents

3C3Com: 2 patents #466 of 1,190Top 40%
IBM: 2 patents #32,909 of 70,183Top 50%
PLPlessey Overseas Limited: 1 patents #89 of 263Top 35%
The Boeing: 1 patents #8,630 of 15,756Top 55%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
Edward Carroll has been granted 4 US patents while listed as an inventor at 3Com. The first was granted in 1989 and the most recent in April 2004. Edward Carroll ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Edward Carroll in Cambridge, MA, GB.

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
6718297 Apparatus and method for discriminating between voice and data by using a frequency estimate representing both a central frequency and an energy of an input signal Joseph P. Pride, III, Cheryl Jean Franklin 2004-04-06 $15,740,000
5646939 Method and apparatus for address to port mapping in a token ring network Carl John Lindeborg, James W. Moran, David Bartolini, John Robert Griesing, Liz Lindell +2 more 1997-07-08
5602827 Method and apparatus for correcting a defect in a token ring network Carl John Lindeborg, James W. Moran, David Bartolini, John Robert Griesing, Liz Lindell +2 more 1997-02-11
4887314 Optical FSK demodulator Nigel Walker 1989-12-12