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

Mark S. Isfeld — 10 Patents

3C3Com: 9 patents #77 of 1,190Top 7%
ANArista Networks: 1 patents #313 of 572Top 55%
San Jose, CA: #6,421 of 32,062 inventorsTop 25%
California: #61,378 of 386,348 inventorsTop 20%
Overall (All Time): #481,000 of 4,157,543Top 15%
10 Patents All Time
Mark S. Isfeld has been granted 10 US patents while listed as an inventor at 3Com. The first was granted in 1995 and the most recent in February 2025. Mark S. Isfeld ranks #481,000 of 4,157,543 US inventors in our database (top 11.6%). Patent records list Mark S. Isfeld in San Jose, CA, US.

Issued Patents All Time

Showing 1–10 of 10 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12237768 Circuits and systems for generating power from multiple sources Willy Tjanaka, Mehran Ataee, Shashi Kumar, Charles Melvin Aden 2025-02-25
6018763 High performance shared memory for a bridge router supporting cache coherency John H. Hughes 2000-01-25 $120,133,000
5828835 High throughput message passing process using latency and reliability classes Tracy D. Mallory, Bruce W. Mitchell, Michael J. Seaman, Nagaraj Arunkumar, Pyda Srisuresh 1998-10-27 $52,749,000
5802278 Bridge/router architecture for high performance scalable networking Tracy D. Mallory, Bruce W. Mitchell, Michael J. Seaman, Nagaraj Arunkumar 1998-09-01 $26,111,000
5664166 System for generating a variable signal in response to a toggle signal selectively delayed using a clock edge and time delay measured from the clock edge 1997-09-02 $112,194,000
5646553 Driver for tri-state bus Bruce W. Mitchell 1997-07-08 $131,699,000
5592622 Network intermediate system with message passing architecture Bruce W. Mitchell, Michael J. Seaman, Tracy D. Mallory, Nagaraj Arunkumar 1997-01-07 $140,875,000
5483640 System for managing data flow among devices by storing data and structures needed by the devices and transferring configuration information from processor to the devices Bruce W. Mitchell 1996-01-09 $75,285,000
5471618 System for classifying input/output events for processes servicing the events 1995-11-28 $66,657,000
5459840 Input/output bus architecture with parallel arbitration Michael H. Bowman, Niles E. Strohl 1995-10-17 $25,018,000