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USPTO Patent Rankings Data through Dec 31, 2025
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Malcolm G. Stack — 3 Patents

BLBell Laboratories: 3 patents #6 of 16Top 40%
Madison, WI: #1,544 of 4,527 inventorsTop 35%
Wisconsin: #13,370 of 40,088 inventorsTop 35%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
Malcolm G. Stack has been granted 3 US patents while listed as an inventor at Bell Laboratories. The first was granted in 1991 and the most recent in September 1995. Malcolm G. Stack ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Malcolm G. Stack in Madison, WI, US.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5448852 Reinforced rodent bait station Cisse W. Spragins, Richard J. Ray 1995-09-12
5044113 Multi-edged rodent bait L. Dawn Brown 1991-09-03
5040327 Polygonal bait station L. Dawn Brown 1991-08-20