Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Patrick Shannon — 2 Patents

ATAT&T: 1 patents #10,636 of 18,772Top 60%
Oak Park, IL: #292 of 677 inventorsTop 45%
Illinois: #34,875 of 84,256 inventorsTop 45%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
Patrick Shannon has been granted 2 US patents while listed as an inventor at AT&T. The first was granted in 1985 and the most recent in May 2023. Patrick Shannon ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Patrick Shannon in Oak Park, IL, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
11662474 Satellite based positioning navigation and timing system, method and computer program product Jeffrey Gick, John G Hildebrand, Simon Dawson, George Schmitt 2023-05-30
4502116 Multiple processor synchronized halt test arrangement Glenn D. Fowler, Ronald L. Stout, Jean Yao 1985-02-26