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

Michael A. Duncan — 5 Patents

IBM: 4 patents #21,783 of 70,183Top 35%
DADeceuninck North America: 1 patents #13 of 17Top 80%
Charlotte, NC: #878 of 4,868 inventorsTop 20%
North Carolina: #10,126 of 45,564 inventorsTop 25%
Overall (All Time): #907,971 of 4,157,543Top 25%
5 Patents All Time
Michael A. Duncan has been granted 5 US patents while listed as an inventor at IBM. The first was granted in 1992 and the most recent in February 2011. Michael A. Duncan ranks #907,971 of 4,157,543 US inventors in our database (top 21.8%). Patent records list Michael A. Duncan in Charlotte, NC, US.

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
7882657 Window assembly with upper sash rail stiffening member supporting tilt latch bolts Philip G. Morton, Christopher R. Ballard 2011-02-08
7658380 Adaptive and predictive document tracking system Rodney G. Moon, Clair F. Rohe 2010-02-09 $5,437,000
7284077 Peripheral interface system having dedicated communication channels Jeffrey E. Journey, Dennis D. Leak, Robert R. Plyler, William W. Plyler, Clair F. Rohe +1 more 2007-10-16 $5,691,000
6918587 Adaptive and predictive document tracking system Rodney G. Moon, Clair F. Rohe 2005-07-19 $10,945,000
5121915 Document processor having improved throughput capabilities Paul A. Hakenewerth, Duane S. Miller, James C. Yarrington 1992-06-16 $19,901,000