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USPTO Patent Rankings Data through Dec 31, 2025
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Duane E. Grant — 5 Patents

IBM: 3 patents #26,335 of 70,183Top 40%
Boulder, CO: #1,300 of 5,018 inventorsTop 30%
Colorado: #9,021 of 40,980 inventorsTop 25%
Overall (All Time): #907,971 of 4,157,543Top 25%
5 Patents All Time
Duane E. Grant has been granted 5 US patents while listed as an inventor at IBM. The first was granted in 1982 and the most recent in March 1996. Duane E. Grant ranks #907,971 of 4,157,543 US inventors in our database (top 21.8%). Patent records list Duane E. Grant in Boulder, CO, US.

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
5497228 Laser bevel meter Lawrence Viele 1996-03-05
4762994 Compact optical scanner driven by a resonant galvanometer Kent A. Byerly 1988-08-09 $19,236,000
4692877 Digital timing control system with memory look ahead Kent A. Byerly, Marvin E. Feldhacker 1987-09-08 $31,369,000
T103801 Mirror multiplexor for linear image sensors Randall A. Maddox 1984-01-03
4344691 Zonal concentrator for accurate erasure of photoconductor charge James R. Walker 1982-08-17 $24,505,000