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USPTO Patent Rankings Data through Dec 31, 2025
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Patrick E. Cavanagh — 8 Patents

MAMaghemite: 4 patents #1 of 3Top 35%
Toronto, CA: #984 of 9,482 inventorsTop 15%
Overall (All Time): #600,572 of 4,157,543Top 15%
8 Patents All Time
Patrick E. Cavanagh has been granted 8 US patents while listed as an inventor at Maghemite. The first was granted in 1981 and the most recent in December 1994. Patrick E. Cavanagh ranks #600,572 of 4,157,543 US inventors in our database (top 14.4%). Patent records list Patrick E. Cavanagh in Toronto, ON, CA.

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDate
5376162 Autogenous roasting of iron ore 1994-12-27
5298056 Direct steel-making process 1994-03-29
5244494 Autogenous roasting of iron ore 1993-09-14
4808893 Starter procedure for permanent magnet motors 1989-02-28
4766814 Materials for thermal protection by rapid smoke production Lloyd C. Wilson 1988-08-30
4766284 Production of compounds by reaction of solid materials at high temperatures produced by plasma arc torches 1988-08-23
4542361 Permanent magnet field diverted to do useful work 1985-09-17
4277329 Induction belt separation 1981-07-07