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USPTO Patent Rankings Data through Sept 30, 2025
MA

Marcel Apfelbaum — 31 Patents

IBM: 31 patents #3,235 of 70,183Top 5%
Afula, IL: #3 of 287 inventorsTop 2%
Overall (All Time): #116,390 of 4,157,543Top 3%
31 Patents All Time

Issued Patents All Time

Showing 26–31 of 31 patents

Patent #TitleCo-InventorsDate
10133699 Hot-plug of devices in virtualized computer systems Michael Tsirkin 2018-11-20
9961033 Memory-mapped input/output (I/O) channel Gal Hammer 2018-05-01
9959233 NUMA-aware root bus selection Michael Tsirkin 2018-05-01
9952980 Deferring registration for DMA operations Michael Tsirkin 2018-04-24
9779050 Allocating virtual resources to root PCI bus Michael Tsirkin 2017-10-03
9639492 Virtual PCI expander device Michael Tsirkin 2017-05-02