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USPTO Patent Rankings Data through Dec 31, 2025
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Raymond J. Whitbread — 2 Patents

MIMitel: 2 patents #45 of 264Top 20%
Ashton, CA: #12 of 22 inventorsTop 55%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
Raymond J. Whitbread has been granted 2 US patents while listed as an inventor at Mitel. The first was granted in 1980 and the most recent in March 1982. Raymond J. Whitbread ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Raymond J. Whitbread in Ashton, ON, CA.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
4321431 Trunk circuit with single coupling transformer Patrick R. Beirne, Michael C. J. Cowpland 1982-03-23 $7,799,000
4182936 Transformerless trunk circuit Patrick R. Beirne, Michael C. J. Cowpland 1980-01-08