Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
MC

Martin E. Chamoff — 3 Patents

IBM: 2 patents #32,909 of 70,183Top 50%
Rochester, MN: #1,303 of 3,042 inventorsTop 45%
Minnesota: #19,251 of 52,454 inventorsTop 40%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
Martin E. Chamoff has been granted 3 US patents while listed as an inventor at IBM. The first was granted in 1981 and the most recent in August 1984. Martin E. Chamoff ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Martin E. Chamoff in Rochester, MN, US.

Patents per Year

Patents granted per year, 1981 to 1984Bar chart with a peak of 1 patents in 1981.peak 11981: 1 patents19811982: 1 patents19821984: 1 patents1984

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
4468750 Clustered terminals with writable microcode memories & removable media for applications code & transactions data Don W. Piller 1984-08-28 $22,129,000
4328544 Electronic point-of-sale system using direct-access storage Harry L. Baldwin, Beryl D. Bergschneider, Irving L. Miller, Don W. Piller, Max J. Robinett +1 more 1982-05-04 $22,380,000
4266271 Reconfigurable cluster of data-entry terminals Irving L. Miller, Donald L. Thorson 1981-05-05