Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Robert Spence — 3 Patents

NSNational Semiconductor: 1 patents #1,247 of 2,238Top 60%
Calgary, CA: #1,324 of 5,407 inventorsTop 25%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
Robert Spence has been granted 3 US patents while listed as an inventor at National Semiconductor. The first was granted in 1988 and the most recent in November 2025. Robert Spence ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Robert Spence in Calgary, AB, CA.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
D1102882 Connect element Kevin J. Johnson, Joseph V. Ranalletta, Shaun O'Brien, Peter Fitzgerald 2025-11-25
6759331 Method for reducing surface zener drift Heikyung Min, Steven M. Kurihara 2004-07-06 $23,549,000
4736796 Tamp hole plug system and method F. James Arnall, Robert W. Graul 1988-04-12