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USPTO Patent Rankings Data through Dec 31, 2025
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Ralph E. Simpson — 3 Patents

Xerox: 3 patents #3,111 of 8,622Top 40%
Rochester, NY: #2,414 of 6,268 inventorsTop 40%
New York: #38,631 of 115,490 inventorsTop 35%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
Ralph E. Simpson has been granted 3 US patents while listed as an inventor at Xerox. The first was granted in 2011 and the most recent in December 2012. Ralph E. Simpson ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Ralph E. Simpson in Rochester, NY, US.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
8326870 Critical parameter/requirements management process and environment Charles D. Rizzolo, Ronald E. Stokes, Louis F. LaVallee, Charles M. Gardiner, William R. Smith +5 more 2012-12-04 $2,066,000
8145671 Critical parameter/requirements management process and environment Charles D. Rizzolo, Ronald E. Stokes, Louis F. LaVallee, Charles M. Gardiner, William R. Smith +5 more 2012-03-27 $2,301,000
7899756 Critical parameter/requirements management process and environment Charles D. Rizzolo, Ronald E. Stokes, Louis F. LaVallee, Charles M. Gardiner, William R. Smith +5 more 2011-03-01 $4,023,000