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

John McElligott — 2 Patents

Oliver Springs, TN: #14 of 32 inventorsTop 45%
Tennessee: #7,603 of 20,272 inventorsTop 40%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
John McElligott has been granted 2 US patents. The first was granted in 1985 and the most recent in December 1986. John McElligott ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list John McElligott in Oliver Springs, TN, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4628926 Carbon dioxide rebreathing apparatus David T. Duncan, David Lipscomb, Charles W. Williams 1986-12-16
4508116 Carbon dioxide rebreathing apparatus David T. Duncan, David Lipscomb, Charles W. Williams 1985-04-02